The Qur’anic root TH N Y

1. Semantic core and early usage

Ibn Fāris writes in Maqāyīs al-Lughah:

«الثَّاءُ وَالنُّونُ وَالْيَاءُ أَصْلٌ وَاحِدٌ، وَهُوَ تَكْرِيرُ الشَّيْءِ مَرَّتَيْنِ، أَوْ جَعْلُهُ شَيْئَيْنِ مُتَوَالِيَيْنِ أَوْ مُتَبَايِنَيْنِ»

al-thāʾu wa-al-nūnu wa-al-yāʾu aṣlun wāḥidun wa-huwa takrīru al-shayʾi marratayni aw jaʿluhu shayʾayni mutawāliyayni aw mutabāyinayni

The family has one semantic foundation: repeating something a second time, or making it two things, consecutive or separate.

Maqāyīs al-Lughah: repetition, twofoldness, and exception

Lisān al-ʿArab also states:

«ثَنَى الشَّيْءَ ثَنْيًا: رَدَّ بَعْضَهُ عَلَى بَعْضٍ»

thanā al-shayʾa thanyan radda baʿḍahu ʿalā baʿḍin

To fold something is to return one part over another.

These definitions highlight related aspects: Ibn Fāris emphasizes becoming two and repeating, while the second definition depicts bending something back upon itself.

Thanā takes different objects. Thanā al-thawba means folding cloth; thanā ʿiṭfahu concerns bending or turning one’s side; thanāhu ʿan amrin can mean dissuading someone from an action.

The root therefore concerns more than the number two. Bending, turning back, and restraining also occur in actual usage.

Lisān al-ʿArab: folding and turning back

Two and being second

Ithnān is the masculine numeral two; ithnatān is feminine. They denote two units, whether people or other things.

Thānī can designate someone or something following a first, or a second member within a pair. In an expression such as thānī ithnayn, it can mean “one of two,” without establishing chronological precedence.

This numerical use requires neither bodily movement nor material folding.

Thannā and tathniyah

Form II thannā can mean making something two, doing it a second time, or bringing it again.

Tathniyah names this action. Arabic grammar also uses the dual to express two people or things.

The numeral must be distinguished from grammatical dual marking. A dual ending in rajulayn does not place that word under TH N Y; its root remains R J L.

Counting derivatives of TH N Y must therefore not be confused with counting every Qur’anic dual noun.

Thanā and inthanā: folding and bending

Thanā can be transitive, as in folding cloth or bending something.

Inthanā describes the thing itself bending or turning back.

Lisān al-ʿArab also applies this family to a snake’s winding body, whose parts turn toward other parts during movement.

That supplies a material image for bending without proving that every meaning arose from a snake’s movement.

Thanā ʿan: restraining and turning away

With ʿan, thanā can mean turning someone back or dissuading them from a direction or action.

Physical bending can thus extend into a change of behavior or intention.

This differs from thanā ʿalā and expressions of praise or mention. Prepositions and sentence construction help determine meaning.

2. Pre-Islamic witnesses and non-Qur’anic uses

Imruʾ al-Qays: twisted and loose hair

In his celebrated Muʿallaqah, Imruʾ al-Qays describes a woman’s hair:

غَدَائِرُهُ مُسْتَشْزِرَاتٌ إِلَى الْعُلَا
تَضِلُّ الْعِقَاصُ فِي مُثَنًّى وَمُرْسَلِ

ghadāʾiruhu mustashzirātun ilā al-ʿulā / taḍillu al-ʿiqāṣu fī muthannan wa-mursali

Translation:

“Its tresses rise upward; the bound locks disappear among twisted and loose hair.”

Muthannā describes twisted hair whose parts lie over one another; mursal describes hair left loose.

The witness shows folding and turning back in early poetry’s descriptions of tangible things, without establishing the historical order of every material, grammatical, and exegetical usage.

Muthannā here does not mean two separate people or things, but the condition of twisted hair.

Early commentaries, including those of Al-Zawzanī and Al-Tabrīzī, record the verse. Readings differ in some words, but the contrast of muthannā and mursal remains in the consulted versions.

Al-Tabrīzī’s commentary: twisted and loose hair and variant readings

Qays ibn Al-Khaṭīm: two people

A verse attributed to the pre-Islamic poet Qays ibn Al-Khaṭīm reads:

إِذَا جَاوَزَ الْإِثْنَيْنِ سِرٌّ فَإِنَّهُ
بِنَثٍّ وَتَكْثِيرِ الْوُشَاةِ قَمِينُ

idhā jāwaza al-ithnayni sirrun fa-innahu / bi-naththin wa-takthīri al-wushāti qamīnu

Translation:

“When a secret passes beyond two people, it is liable to disclosure and amplification by informers.”

In the usual reading, al-ithnayn refers to two people.

The social situation is a secret reaching more people and becoming exposed to circulation.

The numerical meaning is direct: the word names neither bending nor repeated speech nor an exception.

The witness illustrates two in early poetry. Ithnayn normally has a connecting hamzah in prose; grammatical commentaries discuss its pronounced hamzah in this transmission as poetic license.

Commentary on Al-Shāfiyah: Qays, pronounced hamzah, and variants

Praise

Thanāʾ denotes praise and mention of good qualities, although some lexicographers also record mention of both good and bad.

The proposed connection is that the speaker mentions someone’s qualities again or repeats favorable words about them.

This fits recounting and repetition without making thanāʾ and tathniyah synonymous in every use.

No Qur’anic form of this root directly names the act of praising. Praise meanings should therefore not enter mathānī or other derivatives’ translations without evidence.

3. Two, being second, and groups of two in the Qur’an

Many Qur’anic uses concern counting and twofoldness.

Al-Baqarah 2:60 and Al-Aʿrāf 7:160 describe twelve springs for the Children of Israel. Al-Māʾidah 5:12 mentions twelve leaders, and Al-Tawbah 9:36 twelve months. The opening ithnatay ʿashrata in Al-Aʿrāf 7:160 also counts the tribal divisions; that verse thus contains two root occurrences.

Ithnā, ithnay, ithnatā, and ithnatay are components of twelve, varying with grammatical gender and syntactic position.

Elsewhere, ithnayn and ithnatayn denote the number two itself.

Al-Nisāʾ 4:11 and Al-Nisāʾ 4:176 use them in inheritance passages. Al-Māʾidah 5:106 concerns two just persons witnessing at a bequest.

Al-Anʿām 6:143 and Al-Anʿām 6:144 use ithnayn in counting livestock pairs. Hūd 11:40, Al-Muʾminūn 23:27, and Al-Raʿd 13:3 combine two with zawjayn. Al-Naḥl 16:51 uses two in prohibiting taking two deities, and Yā Sīn 36:14 in the sending of two messengers.

The topics differ, but the numerical meaning remains clear: two units, rather than folding or repetition.

Thāniya ithnayn: one of two

Al-Tawbah 9:40

إِلَّا تَنصُرُوهُ فَقَدْ نَصَرَهُ اللَّهُ إِذْ أَخْرَجَهُ الَّذِينَ كَفَرُوا ثَانِيَ اثْنَيْنِ إِذْ هُمَا فِي الْغَارِ إِذْ يَقُولُ لِصَاحِبِهِ لَا تَحْزَنْ إِنَّ اللَّهَ مَعَنَا ۖ فَأَنزَلَ اللَّهُ سَكِينَتَهُ عَلَيْهِ وَأَيَّدَهُ بِجُنُودٍ لَّمْ تَرَوْهَا وَجَعَلَ كَلِمَةَ الَّذِينَ كَفَرُوا السُّفْلَىٰ ۗ وَكَلِمَةُ اللَّهِ هِيَ الْعُلْيَا ۗ وَاللَّهُ عَزِيزٌ حَكِيمٌ

illā tanṣurūhu fa-qad naṣarahu Allāhu idh akhrajahu alladhīna kafarū thāniya ithnayni idh humā fī al-ghāri idh yaqūlu li-ṣāḥibihi lā taḥzan inna Allāha maʿanā fa-anzala Allāhu sakīnatahu ʿalayhi wa-ayyadahu bi-junūdin lam tarawhā wa-jaʿala kalimata alladhīna kafarū al-suflā wa-kalimatu Allāhi hiya al-ʿulyā wa-Allāhu ʿazīzun ḥakīmun

Translation:

“If you do not help him, The God already helped him when the disbelievers drove him out, one of two. The two were in the cave, and he told his companion, ‘Do not grieve; The God is with us.’ The God sent His tranquility upon him, strengthened him with forces you did not see, and made the disbelievers’ word lowest. The God’s word is highest; The God is mighty and wise.”

Thāniya ithnayn here means one of two people. Al-Ṭabarī likewise explains it as aḥada al-ithnayn. The construction alone establishes neither chronological precedence nor a ranking between them.

Al-Ṭabarī: thānī ithnayn means one of two

Thānī does not mean bending or turning away here; the numerical construction determines its meaning.

The following dual pronoun humā also refers to two people.

Thānī itself does not express a spiritual station, moral excellence, or religious rank. Those questions require separate examination of the verse and other evidence.

Nor does its lexical meaning establish the companion’s historical identity. The verse names him through ṣāḥibihi, “his companion.”

Two deaths and two lives

Ghāfir 40:11

قَالُوا رَبَّنَا أَمَتَّنَا اثْنَتَيْنِ وَأَحْيَيْتَنَا اثْنَتَيْنِ فَاعْتَرَفْنَا بِذُنُوبِنَا فَهَلْ إِلَىٰ خُرُوجٍ مِّن سَبِيلٍ

qālū rabbanā amattanā ithnatayni wa-aḥyaytanā ithnatayni fa-iʿtarafnā bi-dhunūbinā fa-hal ilā khurūjin min sabīlin

Translation:

“They said, ‘Our Lord, You made us die twice and brought us to life twice. We acknowledge our sins; is there a way out?’”

Ithnatayn occurs twice, accompanying causing death and bringing to life respectively.

Two counts the events without explaining their kind, timing, or manner.

Those questions belong to a separate study of life and death passages.

No particular theory about human life’s stages should be built into ithnatayn’s lexical meaning.

Mathnā: two by two

Mathnā occurs three times in the Qur’an.

Sabaʾ 34:46

قُلْ إِنَّمَا أَعِظُكُم بِوَاحِدَةٍ ۖ أَن تَقُومُوا لِلَّهِ مَثْنَىٰ وَفُرَادَىٰ ثُمَّ تَتَفَكَّرُوا ۚ مَا بِصَاحِبِكُم مِّن جِنَّةٍ ۚ إِنْ هُوَ إِلَّا نَذِيرٌ لَّكُم بَيْنَ يَدَيْ عَذَابٍ شَدِيدٍ

qul innamā aʿiẓukum bi-wāḥidatin an taqūmū li-Allāhi mathnā wa-furādā thumma tatafakkarū mā bi-ṣāḥibikum min jinnatin in huwa illā nadhīrun lakum bayna yaday ʿadhābin shadīdin

Translation:

“Say, ‘I counsel you in one thing: rise for The God, two by two and singly, then reflect. Your companion has no madness; he is only a warner to you before a severe punishment.’”

Mathnā contrasts with furādā.

Mathnā is two by two; furādā is individually.

The contrast identifies a mode of gathering or action, rather than rising twice.

Reflection follows, but mathnā does not itself mean discussion, debate, or consultation. Those may be ways of thinking together, rather than its lexical definition.

Mathnā in the marriage passage

Al-Nisāʾ 4:3

وَإِنْ خِفْتُمْ أَلَّا تُقْسِطُوا فِي الْيَتَامَىٰ فَانكِحُوا مَا طَابَ لَكُم مِّنَ النِّسَاءِ مَثْنَىٰ وَثُلَاثَ وَرُبَاعَ ۖ فَإِنْ خِفْتُمْ أَلَّا تَعْدِلُوا فَوَاحِدَةً أَوْ مَا مَلَكَتْ أَيْمَانُكُمْ ۚ ذَٰلِكَ أَدْنَىٰ أَلَّا تَعُولُوا

wa-in khiftum allā tuqsiṭū fī al-yatāmā fa-inkiḥū mā ṭāba lakum mina al-nisāʾi mathnā wa-thulātha wa-rubāʿa fa-in khiftum allā taʿdilū fa-wāḥidatan aw mā malakat aymānukum dhālika adnā allā taʿūlū

Translation:

“If you fear you will not deal justly with orphans, marry women agreeable to you: two, three, and four. If you fear you will not act justly, then one woman, or those your right hands possess. That is nearer to avoiding injustice.”

Mathnā stands alongside thulāth and rubāʿ.

These forms express numerical distribution: two by two, three by three, four by four.

Mathnā is the distributive form of two and forms part of the passage’s numerical alternatives.

The conjunction alone does not justify adding the three numbers together to obtain nine without examining construction and context.

The marriage ruling is not established by mathnā alone. The verse opens with justice toward orphans and continues with a condition of justice.

Root study clarifies the numerical sense; marriage’s conditions and limits require the complete verse and related passages.

Mathnā describing angels

Fāṭir 35:1

الْحَمْدُ لِلَّهِ فَاطِرِ السَّمَاوَاتِ وَالْأَرْضِ جَاعِلِ الْمَلَائِكَةِ رُسُلًا أُولِي أَجْنِحَةٍ مَّثْنَىٰ وَثُلَاثَ وَرُبَاعَ ۚ يَزِيدُ فِي الْخَلْقِ مَا يَشَاءُ ۚ إِنَّ اللَّهَ عَلَىٰ كُلِّ شَيْءٍ قَدِيرٌ

al-ḥamdu li-Allāhi fāṭiri al-samāwāti wa-al-arḍi jāʿili al-malāʾikati rusulan ulī ajniḥatin mathnā wa-thulātha wa-rubāʿa yazīdu fī al-khalqi mā yashāʾu inna Allāha ʿalā kulli shayʾin qadīrun

Translation:

“Praise belongs to The God, originator of the heavens and earth, who makes angels messengers with wings in twos, threes, and fours. He adds to creation as He wills; The God has power over everything.”

Mathnā has the same numerical construction here.

The object counted differs from Al-Nisāʾ: the expression concerns angels’ wings.

The number sense remains while context identifies what is counted.

Mathnā alone does not explain the wings’ material or nonmaterial character, their shape, or a mechanism of movement.

4. Bending, folding, and turning away

Yathnūna ṣudūrahum

Hūd 11:5

أَلَا إِنَّهُمْ يَثْنُونَ صُدُورَهُمْ لِيَسْتَخْفُوا مِنْهُ ۚ أَلَا حِينَ يَسْتَغْشُونَ ثِيَابَهُمْ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ ۚ إِنَّهُ عَلِيمٌ بِذَاتِ الصُّدُورِ

alā innahum yathnūna ṣudūrahum li-yastakhfū minhu alā ḥīna yastaghshūna thiyābahum yaʿlamu mā yusirrūna wa-mā yuʿlinūna innahu ʿalīmun bi-dhāti al-ṣudūri

Translation:

“Be aware: they fold their breasts to hide from Him. Be aware: when they cover themselves with their garments, He knows what they conceal and disclose; He knows what is within the breasts.”

Yathnūna is a Form I imperfect verb; ṣudūrahum is its object.

Bending, folding, or turning back part of the body fits the construction.

The movement has a stated purpose: li-yastakhfū minhu, hiding. Garments and divine knowledge of hidden and disclosed matters follow.

The expression can concern concealment, whether actual bodily movement or imagery for concealing intentions and what is within.

The root should not directly be defined as disbelief, hypocrisy, or hostility. Such meanings, where supported, arise from context and behavior rather than thanā itself.

The verse does not fully specify the precise bodily posture.

Thāniya ʿiṭfihi

Al-Ḥajj 22:9

ثَانِيَ عِطْفِهِ لِيُضِلَّ عَن سَبِيلِ اللَّهِ ۖ لَهُ فِي الدُّنْيَا خِزْيٌ ۖ وَنُذِيقُهُ يَوْمَ الْقِيَامَةِ عَذَابَ الْحَرِيقِ

thāniya ʿiṭfihi li-yuḍilla ʿan sabīli Allāhi lahu fī al-dunyā khizyun wa-nudhīquhu yawma al-qiyāmati ʿadhāba al-ḥarīqi

Translation:

“Turning his side to lead others astray from The God’s way: disgrace is his in this world, and on the Resurrection Day We shall make him taste burning punishment.”

This illustrates differences among derivatives.

Thānī means one of two in Al-Tawbah 9:40, but bending or turning in Al-Ḥajj 22:9.

Thāniya ʿiṭfihi concerns turning one’s side.

Arabic can use that posture for turning away, disregard, or arrogance. This comes from the expression’s social use and context.

The passage describes someone disputing about The God without knowledge or guidance and acting to mislead others.

Turning away here is associated with a blameworthy stance.

Thānī is not always negative. Being one of two is not inherently blameworthy, nor is bending the body in every circumstance.

The ethical judgment comes from conduct and context.

5. Exception: excluding something from a group or ruling

Exception is another branch of this root.

Istithnāʾ concerns excluding a case from a ruling, group, or statement.

Ibn Fāris connects this with the root: something is first included generally, then mentioned again individually when an exception separates it.

This explains a connection with returning and mentioning again.

Saying everyone came except one person first includes the group, then excludes a member.

Exception nevertheless has an established linguistic function and should not always be translated as saying something twice.

Wa-lā yastathnūn

Al-Qalam 68:18

وَلَا يَسْتَثْنُونَ

wa-lā yastathnūna

Translation:

“And they made no exception.”

This occurs in the orchard owners’ story.

Al-Qalam 68:17 mentions their oath to harvest in the morning. The continuation, including Al-Qalam 68:24, describes the orchard’s calamity and their intention to prevent any needy person entering.

Yastathnūna is a Form X imperfect verb. No explicit object or exceptive phrase follows.

The verb indicates their making no exception; precisely what was not excepted requires contextual study.

Two important readings

A familiar early reading is that they did not say “if The God wills” in their oath, failing to condition their decision on divine will.

Al-Ṭabarī: exception in the oath

Another reading is that they set aside no share of the produce for the needy.

Zād al-Masīr: two readings of exception

Al-Qalam 68:24 directly describes their decision to prevent a needy person entering the orchard.

Both subjects fit exception’s scope: an exception in an oath, and setting aside part of the harvest.

Preferring one requires evidence from the passage.

Al-Qalam 68:17 directly concerns an oath, providing an immediate clue for that reading.

Al-Qalam 68:24 establishes that depriving the needy was also an actual part of their decision.

The presence of both matters does not make every detail part of yastathnūna’s simultaneous lexical meaning.

“They made no exception” preserves the direct wording; contextual commentary can examine the readings and evidence.

The story should not be reduced to uttering a formula. The deliberate exclusion of the needy and its outcome also have a central place in the text.

6. Mathānī: repetition and recurrence in the Qur’an

Mathānī is a particularly significant and debated form.

It occurs twice: Al-Ḥijr 15:87 and Al-Zumar 39:23.

Lexical and exegetical sources connect it with repetition, recounting, repeated recitation, and recurring themes.

The linguistic meaning must nevertheless be distinguished from its precise referent in each passage.

Al-Zumar 39:23: a harmonious book, mathānī

Al-Zumar 39:23

اللَّهُ نَزَّلَ أَحْسَنَ الْحَدِيثِ كِتَابًا مُّتَشَابِهًا مَّثَانِيَ تَقْشَعِرُّ مِنْهُ جُلُودُ الَّذِينَ يَخْشَوْنَ رَبَّهُمْ ثُمَّ تَلِينُ جُلُودُهُمْ وَقُلُوبُهُمْ إِلَىٰ ذِكْرِ اللَّهِ ۚ ذَٰلِكَ هُدَى اللَّهِ يَهْدِي بِهِ مَن يَشَاءُ ۚ وَمَن يُضْلِلِ اللَّهُ فَمَا لَهُ مِنْ هَادٍ

Allāhu nazzala aḥsana al-ḥadīthi kitāban mutashābihan mathāniya taqshaʿirru minhu julūdu alladhīna yakhshawna rabbahum thumma talīnu julūduhum wa-qulūbuhum ilā dhikri Allāhi dhālika hudā Allāhi yahdī bihi man yashāʾu wa-man yuḍlili Allāhu fa-mā lahu min hādin

English rendering of Forqan’s current Persian translation:

“The God sent down the best discourse, a harmonious and recurring book. The skins of those fearing their Lord shiver from it; then their skins and hearts soften toward remembrance of The God. This is The God’s guidance, by which He guides whom He wills; whoever The God leads astray has no guide.”

Mathāniya describes the book sent down by The God.

Early linguistic commentaries mention recurring material, admonitions, accounts, and rulings, and repeated reading of verses.

Al-Ṭabarī: recurring material and mathānī

These explanations fit the root’s field: something said or read again has recurred.

What exactly recurs here remains the question.

Repeated recitation? Themes returning across surahs? Promise and warning, guidance and error, belief and rejection appearing in related or contrasting constructions?

Each can be studied, but no possibility should become mathānī’s exclusive definition without sufficient evidence.

Repeated wording or recurring meaning?

Restricting repetition to identical wording would overlook much Qur’anic usage.

Moses’ story, for example, appears in several surahs with differences in wording, details, and emphasis.

An idea such as human responsibility can likewise recur through different examples and constructions.

A recurring topic need not be a verbatim repetition.

Conversely, mathānī does not prove a universal rule that every verse must have a second verse matching its structure and meaning.

The word permits repetition and recounting, while their actual Qur’anic realization requires study of the verses.

Mutashābihan and mathāniya

The two descriptions stand together in Al-Zumar 39:23.

Mutashābihan belongs to SH B H and concerns resemblance or harmony here; mathāniya belongs to TH N Y and concerns recurrence.

They can complement one another: recurring material may share underlying meaning.

Resemblance and repetition are not synonymous. Two statements can resemble one another without repeating, while one theme can recur in different forms.

Both descriptions therefore deserve preservation in translation and analysis.

Mutashābihan here should also not automatically be equated with mutashābihāt in Āl ʿImrān 3:7: construction, subject, and context differ.

Al-Ḥijr 15:87: seven of the mathānī

Al-Ḥijr 15:87

وَلَقَدْ آتَيْنَاكَ سَبْعًا مِّنَ الْمَثَانِي وَالْقُرْآنَ الْعَظِيمَ

wa-la-qad ātaynāka sabʿan mina al-mathānī wa-al-qurʾāna al-ʿaẓīma

English rendering of Forqan’s current Persian translation:

“We have indeed given you seven of the recurring ones and the great Qur’an.”

Sabʿan, seven, accompanies mina al-mathānī.

Seven of what, precisely?

Early commentaries give several readings.

One identifies Al-Fātiḥah’s seven verses, associated with repeated recitation and worship. This identification also relies on transmitted evidence: for example, Abū Saʿīd ibn Al-Muʿallā’s report in Ṣaḥīḥ al-Bukhārī identifies Al-Fātiḥah as the seven mathānī. That evidence is independent of lexical derivation.

Ṣaḥīḥ al-Bukhārī: Abū Saʿīd ibn Al-Muʿallā’s report on Al-Fātiḥah

Another identifies seven long surahs.

A broader reading connects mathānī with recurrence across the Qur’an, citing Al-Zumar 39:23.

Al-Ṭabarī: readings of the referent of seven mathānī

Linguistically, mathānī is not inherently a proper name for Al-Fātiḥah or seven particular surahs.

Those identifications concern the expression’s referent rather than the root’s basic meaning.

Neither verses nor surahs explicitly follows seven in Al-Ḥijr 15:87; identifying the counted unit requires independent evidence.

Is mathānī limited to seven things?

Al-Zumar 39:23 applies mathānī to the book itself.

The word’s linguistic and Qur’anic scope is therefore not restricted to a seven-part set.

That does not prove that Al-Ḥijr necessarily means seven unspecified parts of the entire Qur’an.

The word’s meaning and the referent of seven must remain distinct questions.

Repetition and recounting have clear lexical support; identifying the seven is a separate inquiry.

Nor does the conjunction in wa-al-qurʾāna al-ʿaẓīma alone prove that the seven must lie outside the Qur’an. Arabic coordination can highlight part of a whole.

Neither complete separation nor certain identification with one particular surah follows from the conjunction alone.

7. Comparison with related roots

TH N Y (thany) and Ṭ W Y (ṭayy): folding and rolling up

Study of Ṭ W Y (Not yet published)

Thanā and ṭawā can both concern folding or wrapping material things.

Ṭawā may also concern gathering up or ending something’s extension; TH N Y additionally connects with becoming two, turning back, and repetition.

Cloth may be folded with either verb, but ithnān and being second belong to TH N Y, not Ṭ W Y.

Overlap in one material action does not make the roots’ entire semantic fields identical.

TH N Y (thany) and K R R (takrīr): doing again and repetition

Study of K R R

K R R concerns returning and repeating.

TH N Y shares recurrence, but also concerns two, being second, and folding.

“Recurring” may explain mathānī contextually without covering every other derivative.

Repetition need not stop at two times: a subject can recur many times while remaining within recounting’s field.

TH N Y (mathnā) and Z W J (zawj): twofoldness and a pair

Study of Z W J

Zawj can denote a member of a pair or, in some uses, a kind or category.

Mathnā in the passages discussed is a numerical distributive: two by two.

The Noah passages combine zawjayni with ithnayni. Pair and two are related without being identical words.

Not every zawj should be translated as two units without context, just as mathnā alone means neither spouse nor sexual pair.

TH N Y (istithnāʾ) and illā: an exception verb and its particle

Illā is a familiar Arabic exceptive particle.

It is not etymologically derived from TH N Y.

Yastathnūna is a verb, “they make an exception”; illā is a particle usable in an exceptive construction.

Grammatical and semantic connection does not make the two share a root.

The many occurrences of illā must therefore not be added to the TH N Y derivative count.

8. Translation proposals for Forqan

This family requires different equivalents for its derivatives, while the connection between twofoldness, turning back, and recurrence remains in the root explanation.

Ithnān, ithnayn, ithnatān, and ithnatayn mean two or two people in numerical uses. In the compound numeral, the whole expression is translated as twelve.

Thānī in Al-Tawbah 9:40 means one of two in that construction; in Al-Ḥajj 22:9, bending or turning within the side expression.

Mathnā is two by two in Sabaʾ 34:46, with the same distributive value in Al-Nisāʾ 4:3 and concerning wing numbers in Fāṭir 35:1.

Yathnūna in Hūd 11:5 means bend, twist, or fold. Forqan’s current Persian phrase about folding their breasts preserves the image.

Yastathnūna in Al-Qalam 68:18 means make an exception. Its object belongs in contextual explanation rather than an unmarked addition to the verb’s lexical meaning.

Mathānī in Al-Zumar 39:23 can be recurring or containing repeated recountings. The same semantic field applies in Al-Ḥijr 15:87, with the seven’s identification requiring separate evidence.

Brief root meanings and contextual meanings

9. Conclusion

TH N Y links number, movement, recurrence, and exception across a broad Qur’anic family.

Material thanā concerns bending something back upon itself. Numerically, ithnān denotes two units and thānī a second member; mathnā expresses two by two.

Bending and turning may describe turning away or attempting concealment, as in Hūd 11:5 and Al-Ḥajj 22:9. Their negative character comes from context, not the root itself.

Exception returns to a ruling to exclude a case. Al-Qalam 68:18 does not explicitly state what is excepted; context must identify it.

Mathānī concerns repetition, recounting, and recurrence. Al-Zumar 39:23 describes the book, whereas Al-Ḥijr 15:87 mentions seven of the mathānī. The lexical meaning can be understood without claiming an unsupported identification of the seven.

Sharing a root does not make the derivatives identical: thānī ithnayn differs from thānī ʿiṭfihi; numerical mathnā differs from mathānī describing the Qur’an; and exception has developed an independent linguistic function despite its connection with return and repetition.

The family’s core can thus be understood through twofoldness, turning back, and repetition. Each Qur’anic derivative requires translation according to its form, accompanying words, and particular context.