Qur’anic Root J W F
The interior and enclosed space: from a bodily cavity to the inside of people and things
Qur’anic and lexical forms
جَوْف / جَوْفِهِ
(jawf / jawfihi)
Noun; one Qur’anic occurrence with a pronoun
أَجْوَاف
(ajwāf)
Plural of jawf; not Qur’anic
أَجْوَف / جَوْفَاء
(ajwaf / jawfāʾ)
Describing a hollow or spacious interior; not Qur’anic
جَوِفَ / جافَ
(jawifa / jāfa)
Recorded verbal forms; not Qur’anic
جَائِف
(jāʾif)
A lexical form; not Qur’anic
جَائِفَة
(jāʾifah)
A wound reaching the interior; not Qur’anic
أَجَافَ
(ajāfa)
Form IV; making a wound reach the interior
جَوَّفَ / تَجْوِيف
(jawwafa / tajwīf)
Form II and verbal noun; hollowing out
مُجَوَّف
(mujawwaf)
Form II passive participle; not Qur’anic
مَجُوف
(majūf)
A recorded descriptive form; not Qur’anic
اجْتَافَ
(ijtāfa)
Form VIII; entering the interior
تَجَوَّفَ
(tajawwafa)
Form V; entering the interior
اسْتَجَافَ / اسْتَجْوَفَ
(istajāfa / istajwafa)
Lexical forms concerning internal spaciousness
مُسْتَجَاف
(mustajāf)
Spaciousness in the Abū Duʾād witness
جُوفِيّ
(jūfiyy)
Spacious within, in the Al-ʿAjjāj witness
Arabic jawf denotes the inside of something: a space among its walls, surrounding sides, or outer parts. The human interior, the inside of a vessel, a hollow tree trunk, and a depression in the ground can all be expressed through this family.
Ajwaf describes something with an interior or cavity; jawfāʾ is its feminine form. Jāʾifah denotes a wound that passes beyond the body’s surface and reaches its interior.
The root occurs in the Qur’an only in Al-Aḥzāb 33:4. The God states that He has not placed two hearts within any man, then explains that a wife does not become her husband’s mother through his words, nor an adopted child his actual child merely by being called one.
Jawf here denotes a person’s internal space. The word itself means neither heart nor inward thought, feeling, or belief. Such concepts can arise in context, but jawf independently denotes the interior.
1. Forms and semantic core
J W F is a triliteral hollow root: its middle consonant is wāw and changes in certain inflections.
Recorded Arabic forms include jawf, ajwāf, jawifa, jāfa, jāʾif, jāʾifah, ajwaf, jawfāʾ, jawwafa, tajwīf, mujawwaf, majūf, ijtāfa, tajawwafa, istajāfa, and istajwafa.
Their usages concern internal space, hollowness, spaciousness, penetration into an interior, and wounds reaching the body’s interior.
The only Qur’anic form is jawfihi, consisting of singular jawf and the attached pronoun -hi, after the preposition fī in Al-Aḥzāb 33:4.
Quranic Arabic Corpus: the sole jawfihi occurrence
No verb or other derivative from this family occurs in the Qur’anic text.
Ibn Fāris’s account of the root
Ibn Fāris presents the family around one central idea in Maqāyīs al-Lughah:
«كَلِمَةٌ وَاحِدَةٌ، وَهِيَ جَوْفُ الشَّيْءِ»
kalimatun wāḥidatun wa-hiya jawfu al-shayʾ
That is: “A single principal concept: the inside of a thing.”
Ibn Fāris, Maqāyīs: a thing’s interior
He gives the human interior, a wound reaching it, and a pot with a spacious interior as examples.
The account is clearer than that of some families with multiple branches: most prominent forms concern internal space or reaching it.
Having an interior and being empty must nevertheless remain distinct.
An internal space can contain substances or organs. The human interior is not completely empty, but can still be called jawf.
An empty vessel likewise has a jawf, which may later be filled with water or something else.
A defensible semantic core is the internal, encompassed space of something, whether empty or occupied. Brief root meaning: The internal, encompassed space of something, whether empty or containing something.
This explains the Qur’anic usage and most familiar derivatives without requiring complete emptiness in every instance.
2. Jawf in human and other bodies
Jawfu al-insān: the human interior
Lexical sources use jawfu al-insān for the inside of the human body.
Ibn Sīda explains it as bāṭinu al-baṭn, the inside of the belly.
Ibn Sīda, Al-Muḥkam: abdominal and trunk interiors
A wider explanation also includes the space enclosed by the shoulder blades, upper arms, ribs, and flanks.
The boundaries of early Arabic usage did not always coincide with modern anatomical divisions.
Jawf sometimes refers specifically to the abdominal interior, and sometimes to the interior of the trunk containing internal organs.
Al-Aḥzāb 33:4 concerns the heart, so jawf cannot there be confined to the stomach or abdominal cavity.
The heart lies in the chest. Jawf in this verse denotes the body’s interior rather than a particular digestive organ.
Is jawf identical to the belly?
Baṭn and jawf overlap in some usages.
Baṭn can denote the belly of a person or animal, and elsewhere the inward or concealed part of something.
Jawf also has a wide field concerning the internal space of objects, vessels, and places.
A vessel’s inside is its jawf even if the vessel does not resemble a human belly.
A tree trunk’s hollow or a depression in the ground may likewise be called jawf.
Not every usage can therefore be translated as “belly.”
“Within him” or “his interior” is more precise in Al-Aḥzāb 33:4, preserving the internal location without restricting it to the digestive system.
Jawf and internal organs
Jawf allows a distinction between a space and its contents.
The heart, stomach, and other organs may be within the body, but these organs are not themselves identical to the name jawf.
The verse’s construction illustrates this distinction:
«مِنْ قَلْبَيْنِ فِي جَوْفِهِ»
min qalbayni fī jawfihi
Qalbayni names two hearts, while jawfihi identifies the interior where their placement is discussed.
Making jawf directly mean heart would produce something like “two hearts in his heart,” erasing the distinction.
The meanings of qalb and jawf must remain separate.
3. Internal space, hollowness, and injury
Ajwaf: something with an interior
Ajwaf describes something possessing an internal space or hollow.
Its feminine form is jawfāʾ.
Lexical sources record:
«قِدْرٌ جَوْفَاءُ»
qidrun jawfāʾ
That is: “A pot with a spacious interior.”
The internal space is part of the pot’s structure.
The pot is made to contain something. Being jawfāʾ therefore does not make it useless or defective.
Shajaratun jawfāʾ is also recorded for a tree with a cavity or hollow inside its trunk.
Here the adjective can describe the trunk’s hollowness.
Ajwaf and jawfāʾ can emphasize a cavity in some usages and the spaciousness of an interior in others.
“Devoid of substance,” “worthless,” or “futile” must not be transferred into every usage without evidence.
Tajwīf: making an internal space
Jawwafa al-shayʾa is recorded for making a cavity or internal space in something.
Making a space inside wood or stone, for example, can be described through tajwīf.
Mujawwaf describes something hollowed out or possessing a cavity.
It is close to ajwaf in meaning but differs in formation.
Ajwaf describes a condition, while jawwafa can describe creating the internal space.
Something mujawwaf may have been hollowed by an action, whereas something ajwaf need not have been made by a person or tool.
A tree trunk may naturally decay and become hollow, while a vessel may be deliberately made to hold water.
The situation and construction establish the difference.
Jāʾifah: a wound reaching the interior
Jāʾifah is an important usage within the family.
Kitāb al-ʿAyn defines it as a wound reaching the jawf.
Lisān al-ʿArab likewise explains ṭaʿnatun jāʾifatun as an injury extending beyond the surface into the body’s interior.
Some definitions require reaching the interior, while others mention deep penetration or passing through. Emerging from the other side is not necessary to every definition: the explanation of jāfa al-ṣayda expressly says the arrow does not emerge from the opposite side.
Al-Muḥkam and Lisān: penetrating wounds and an arrow not emerging
The differing explanations show variation in how the boundaries of jāʾifah were specified in subsequent technical usage.
The lexical core is clear: the wound reaches the body’s interior instead of remaining at the skin’s surface.
Jāfahu and ajāfahu are also recorded for injuring the jawf.
Jāfa al-ṣayda describes game whose interior an arrow penetrates.
Jawf itself does not mean wound; the wound reaches the jawf.
Jāʾifah therefore does not make injuring or harming the root’s primary meaning.
The bodily interior is a physical reality; jāʾifah names an injury reaching it.
The legal usage of jāʾifah
In jurisprudential texts, jāʾifah names a type of deep wound for which rules and measures of compensation are discussed. The technical usage should not be treated as exclusively late: the term itself is recorded in early reports concerning wounds.
Lexical sources: early recording of the term jāʾifah
This technical use draws on the lexical meaning of penetration into the body.
Later legal terminology must nevertheless not become the primary definition of Qur’anic jawf.
Al-Aḥzāb 33:4 discusses no wound or injury, only the human interior in relation to the placement of hearts.
Jāʾifah helps explain the lexical family, but its meaning is not present in the verse.
4. Places and witnesses from early Arabic
A depression in the ground
Jawf is not confined to bodies and vessels.
Lisān al-ʿArab records al-muṭmaʾinnu mina al-arḍ: ground lower than its surroundings.
Lisān and Al-Muḥkam: depressed ground
The surrounding land is higher and the middle lower, forming a space resembling an interior or hollow.
Geographical and lexical sources also apply jawf to some valleys and depressed areas.
An interior need not therefore be completely enclosed.
A place can be open above but called jawf because of its depression and surrounding heights.
A roof or complete closure is not necessary to the root’s meaning.
The inside of an animal’s shelter
Ijtāfa al-thawru al-kināsa is recorded for a wild bovine entering its shelter’s interior.
Kinās denotes a place an animal enters for refuge or rest.
Ijtāfa here describes movement into an internal space.
The shelter may consist of branches, vegetation, and other natural elements. The animal moves from outside into an encompassed interior.
Kitāb al-ʿAyn and Lisān al-ʿArab record the usage, showing that the family names both a space and entry into it.
Al-ʿAyn: the wild bovine entering its shelter
A witness from Al-ʿAjjāj
A rajaz passage attributed to Al-ʿAjjāj reads:
«فَهْوَ إِذَا مَا اجْتَافَهُ جُوفِيُّ
كَالْخُصِّ إِذْ جَلَّلَهُ الْبَارِيُّ»
fa-hwa idhā mā ijtāfahu jūfiyyu / ka-al-khuṣṣi idh jallalahu al-bāriyyu
That is: “The shelter, when the animal enters it, is spacious within, like a hut covered by reed matting.” Ijtāfahu describes the animal entering its shelter; jūfiyy describes internal spaciousness, and al-bāriyy names reed matting rather than the hut’s maker.
Al-Ṣiḥāḥ and Lisān: al-bāriyy as reed matting
The image concerns an internal shelter where the animal settles.
It accords with jawf as internal space.
Al-Ṣiḥāḥ, Al-ʿUbāb, and Tāj: Al-ʿAjjāj and jūfiyy
Al-ʿAjjāj was an Islamic-period poet. The verse is classical Arabic evidence rather than an independent record of language before Qur’anic revelation.
A witness attributed to Abū Duʾād al-Iyādī
A verse attributed to the pre-Islamic poet Abū Duʾād al-Iyādī describes a horse with a broad mouth:
«فَهِيَ شَوْهَاءُ كَالْجُوَالِقِ فُوهَا
مُسْتَجَافٌ يَضِلُّ فِيهِ الشَّكِيمُ»
fa-hiya shawhāʾu ka-al-juwāliqi fūhā / mustajāfun yaḍillu fīhi al-shakīm
That is: “The horse’s mouth is broad like a large sack, so spacious that the bit is lost within it.”
Juwāliq denotes a large sack or container, and shakīm the metal part of a bridle placed in the horse’s mouth.
Mustajāf concerns the mouth’s spacious interior.
The family therefore concerns capacity and internal breadth as well as empty space.
The space need not be a closed cavity in solid material. The horse’s mouth opens and closes and is described in terms of breadth.
Early lexical sources attribute the verse to Abū Duʾād. Its exact composition date is not independently established; attribution to a pre-Islamic poet does not prove that every detail of its transmitted wording certainly survives from that period. Al-Ṣiḥāḥ transmits yaḍillu, while Al-ʿUbāb also has yaẓallu; the yaḍillu wording is retained here following Al-Ṣiḥāḥ.
Al-Ṣiḥāḥ and Al-ʿUbāb: Abū Duʾād and variant readings
Geographical names and extended usage
Al-Jawf has named several geographical areas, including regions and valleys in Yemen and elsewhere in the Arabian Peninsula.
Some names may relate to depressions or land surrounded by higher ground.
A place name does not necessarily retain every lexical feature of the root.
Calling a region Al-Jawf does not alone specify its exact shape, valley dimensions, or natural structure.
Place names illustrate the word’s range but do not turn Qur’anic jawfihi into a valley or depression in the ground.
5. The Qur’anic usage: two hearts in one interior
Al-Aḥzāb 33:4
مَا جَعَلَ اللَّهُ لِرَجُلٍ مِنْ قَلْبَيْنِ فِي جَوْفِهِ وَمَا جَعَلَ أَزْوَاجَكُمُ اللَّائِي تُظَاهِرُونَ مِنْهُنَّ أُمَّهَاتِكُمْ وَمَا جَعَلَ أَدْعِيَاءَكُمْ أَبْنَاءَكُمْ ذَٰلِكُمْ قَوْلُكُمْ بِأَفْوَاهِكُمْ وَاللَّهُ يَقُولُ الْحَقَّ وَهُوَ يَهْدِي السَّبِيلَ
mā jaʿala Allāhu li-rajulin min qalbayni fī jawfihi wa-mā jaʿala azwājakumu allāʾī tuẓāhirūna minhunna ummahātikum wa-mā jaʿala adʿiyāʾakum abnāʾakum dhālikum qawlukum bi-afwāhikum wa-Allāhu yaqūlu al-ḥaqqa wa-huwa yahdī al-sabīl
“The God has not placed two hearts within any man, nor has He made your wives whom you declare to be like your mothers your mothers, nor has He made your adopted sons your sons. That is your saying with your mouths. And The God speaks the truth and guides to the way.”
Jawfihi follows fī here.
Fī expresses location within, jawf names that interior, and -hi refers to rajulin, a man.
Fī jawfihi therefore means “within his interior.”
Qalbayni belongs to Q L B and is the dual of qalb.
It denotes two hearts.
The sentence consequently speaks of not placing two hearts within a man.
Why fī jawfihi?
Had the verse simply said that The God has not placed two hearts for a man, the subject would still be intelligible.
Fī jawfihi also specifies the hearts’ internal location.
It connects the statement with an individual human being’s bodily constitution.
The heart is distinct from jawf and situated within the body.
The sentence draws on a familiar reality: ordinary human bodily constitution involves one heart.
This does not make jawf itself mean heart or the center of thought.
Jawf is the internal space; qalb the organ whose number is discussed.
The construction itself supports the distinction.
The meaning of min qalbayni
Min in min qalbayni occurs within a negative sentence.
A recognized grammatical analysis treats it as emphasizing the negation.
The statement does not merely say that The God has not placed “some of two hearts”; it negates two hearts within one person.
The emphatic negation prepares the following statements.
The emphasis comes from mā jaʿala and min qalbayni, rather than jawf meaning unity or the denial of duality.
Al-Darwīsh, Iʿrāb al-Qurʾān: negation and min
Does qalbayni refer only to two bodily organs?
The opening discusses two hearts within a person, using words with recognized physical meanings.
The continuation shows that the statement is not confined to anatomy.
Two further relationships are then negated.
A wife does not become a mother merely through ẓihār.
An adopted child does not become a biological child merely through naming or attribution.
The opening can therefore introduce a distinction between reality and human naming or assertion.
Imagining or declaring two hearts in one body does not replace reality, just as calling a wife a mother or an adopted child a biological child does not change those relationships’ reality.
The complete construction supports this reading, repeating mā jaʿala three times.
The direct wording of two hearts within an interior should nevertheless not be removed and replaced solely with “two thoughts,” “two beliefs,” or “two personalities.”
The verse opens with a physical image, then uses it in addressing a wider matter.
Does the verse concern two wills or conflicting beliefs?
Some commentaries connect two hearts with two independent centers of understanding or volition.
Some historical reports also mention people claiming to have two hearts, or exceptional intelligence and memory as though they possessed two hearts.
Al-Ṭabarī: reports about two hearts and family relationships
Al-Aḥzāb 33:4 itself names no one in its opening statement.
Nor does it say that people cannot experience conflicting desires or different feelings.
Desire, fear, hope, and rational judgment can conflict in one situation. That is not possession of two physical hearts.
Min qalbayni fī jawfihi alone does not establish a definitive theory denying all internal conflict, allowing only one feeling, or making every human motive identical.
The verse negates two hearts; its connection with reality and human claims becomes clearer in the continuation.
Is this an independent medical law?
The opening concerns two hearts within a person and draws on the body’s familiar condition.
The continuation indicates that its main aim is not an anatomical classification of every congenital or exceptional bodily condition.
Language can use a general reality in an argument concerning another subject.
This sentence alone should therefore not serve as a comprehensive scientific judgment on every rare bodily anomaly or condition resulting from medical intervention.
Particular medical questions do not, conversely, justify removing the physical meanings of qalb and jawf from the translation.
A defensible boundary is that the Qur’an speaks of not placing two hearts within a person, then examines human relationships through repeated mā jaʿala. Medical details remain a separate subject.
6. Three negations: reality and naming
A prominent feature of Al-Aḥzāb 33:4 is the repeated mā jaʿala.
The first statement reads:
«مَا جَعَلَ اللَّهُ لِرَجُلٍ مِنْ قَلْبَيْنِ فِي جَوْفِهِ»
mā jaʿala Allāhu li-rajulin min qalbayni fī jawfihi
The second:
«وَمَا جَعَلَ أَزْوَاجَكُمُ اللَّائِي تُظَاهِرُونَ مِنْهُنَّ أُمَّهَاتِكُمْ»
wa-mā jaʿala azwājakumu allāʾī tuẓāhirūna minhunna ummahātikum
The third:
«وَمَا جَعَلَ أَدْعِيَاءَكُمْ أَبْنَاءَكُمْ»
wa-mā jaʿala adʿiyāʾakum abnāʾakum
The repeated construction connects the three negations.
Words do not turn a wife into a mother
The second part concerns ẓihār, in which a man likened his wife to his mother through a particular expression.
The Qur’an says that this utterance does not turn the wife into his mother.
Al-Mujādilah 58:2 likewise distinguishes actual mothers from women addressed through ẓihār.
Jawf in the first statement does not mean mother or wife.
The relationship lies in the verse’s argument, rather than the word’s derivation.
Naming does not make an adopted child a biological child
The third part concerns adʿiyāʾakum: people attributed to someone as children.
The verse states that this attribution alone does not make them biological children.
Al-Aḥzāb 33:5 instructs that they be attributed to their fathers, then discusses their religious and social relationship when their fathers are unknown.
The sequence concerns the reality of family relationships and justice in naming.
Denying a biological relationship does not deny affection, support, or moral responsibility toward an adopted child.
That conclusion does not follow from the verse itself.
Dhālikum qawlukum bi-afwāhikum
The Qur’an continues:
«ذَٰلِكُمْ قَوْلُكُمْ بِأَفْوَاهِكُمْ»
dhālikum qawlukum bi-afwāhikum
That is: “That is your saying with your mouths.”
This distinguishes human speech from reality.
People can name or assert something, but saying it does not necessarily change external reality.
The verse uses afwāh for mouths.
That word does not belong to J W F.
The presence of mouths and the bodily interior in one verse does not make their derivations identical.
Their contextual relationship comes from the contrast between spoken claims and reality.
Together the three negations and concluding expression emphasize the distinction between created reality and actual relationships, on one hand, and unsupported naming on the other.
Jawf nevertheless retains its meaning of internal space in the opening.
8. Translation proposal for Forqan
Jawfihi in Al-Aḥzāb 33:4 means “his interior.”
Persian equivalents corresponding to “within him,” “within his body,” and “his internal space” merit consideration.
The short Persian “darūnash” is natural and preserves the spatial meaning.
“Within his body” makes the physical sense clearer, but the Arabic phrase contains no separate word for body. That explanation is better supplied in the root study or contextual analysis.
“His belly” is unsuitable here: the verse concerns hearts, and restricting jawf to the abdomen can mislead about their location.
Psychological equivalents such as “his heart,” “his conscience,” or “his inward self” can obscure the distinction between qalb and jawf.
The existing Forqan translation begins:
“The God has not placed two hearts within any man,”
The rendering preserves the distinction between qalbayni and jawfihi.
Brief root meaning
“J W F: The internal, encompassed space of something, whether empty or containing something.”
Meaning of the Qur’anic form
“Jawfihi: his interior; here, the body’s internal space in which the placement of two hearts is negated.”
The explanations should remain separate.
The root summary concerns internal space; the contextual meaning relates it to human hearts.
A fuller discussion can examine the verse’s three negations and the difference between reality and naming, without turning that contextual conclusion into jawf’s independent meaning.
Conclusion
Arabic J W F concerns the internal, encompassed space of things and living beings.
Ibn Fāris places the inside of a thing at the center of the family. Early usages concern the human interior, vessels, hollow tree trunks, depressed ground, and animals’ resting places.
Ajwaf describes something with an interior, tajwīf making a cavity, and jāʾifah a wound reaching the body’s interior.
These usages differ in action and setting, but generally share the existence of internal space or reaching it.
The Qur’an contains only jawfihi in Al-Aḥzāb 33:4. The verse negates placing two hearts within a man, then negates two family relationships that human words alone cannot establish.
The complete verse indicates that naming and human claims alone do not change a relationship’s reality.
That contextual conclusion must remain distinct from jawf’s lexical meaning.
The direct, defensible Qur’anic meaning of J W F is the body’s internal space; fī jawfihi means “within him.”
The word does not itself mean heart, will, belief, or a divided personality. Two hearts comes from qalbayni; the message about reality and human relationships comes from the complete construction of Al-Aḥzāb 33:4.