The Qur’anic Root M R Ḍ
Illness, weakness, deficiency, and departure from health and balance
Qur’anic forms studied from this root
The root م ر ض (M R Ḍ) in Arabic begins from the clear experience of illness: a state in which the body, strength, nature, or function of something leaves health and balance. But in Arabic, the root is not limited to bodily illness. It is also used for weak wind, a dark night, deficient judgment, slackness in action, corrupted land, and disease of the heart. The Qur’an takes this semantic field and uses it in both the bodily field and the inward field of the human being.
The root of illness, deficiency, weakness, slackness, and departure from health or proper function: in body, condition, judgment, or heart.
I became ill, I was unwell; the body leaving health and natural ability.
Illness, sickness, deficiency, weakness, or disorder in health and balance; in the body or in the heart.
Ill person and ill people; those upon whom illness or bodily inability has come.
The general meaning of M R Ḍ
The root م ر ض (M R Ḍ) points to a state in which something has left health, strength, clarity, balance, or proper function. Its first meaning is illness: the opposite of health. But in the depth of Arabic usage, maraḍ is not only a name for bodily sickness. It also indicates deficiency, weakness, darkness, slackness, or disorder in the natural function of something.
When the body is ill, it loses its natural strength and ability. When an eye is ill, its seeing has weakness and slackness. When an opinion is ill, it has moved away from soundness and correctness. When a night is called ill, its light and clarity have diminished. And when the heart is ill, it has lost the health of its orientation before truth.
For this reason, the root has a double capacity in the Qur’an: on one side, it recognizes bodily illness as a human reality; and on the other side, it speaks of disease of the heart: an inward disorder that moves the human being away from healthy receptivity to truth.
Use of the root in Arabic
In classical Arabic, al-maraḍ stands opposite al-ṣiḥḥah, health. One says: mariḍa fulān, meaning so-and-so became ill. Maraḍ names the state of illness, and marīḍ is the one upon whom that state has come. Its plurals include marḍā, marāḍā, and sometimes mirāḍ.
But Arabic usage of this root is broader than the body. Arabs say rīḥ marīḍah, a weak and lifeless wind. They say laylah marīḍah, a dark, heavy, or dim night. They say raʾy marīḍ, an opinion that has deviated from correctness and firmness. It is also said: kullu mā ḍaʿufa fa-qad mariḍa, everything that weakens has, in a way, become ill.
In these usages, maraḍ means departure from strength and health. When wind is ill, it lacks the power to blow. When night is ill, it lacks clarity and light. When judgment is ill, it lacks soundness. This breadth shows that M R Ḍ in Arabic also carries the field of deficiency in function.
Examples outside the Qur’an
Arabic lexical and literary texts preserve several examples of this root. About night, it is said:
وليلةٍ مَرِضَتْ من كلِّ ناحيةٍ
فلا يُضيءُ لها نجمٌ ولا قمرُ
That is, a night made dark and heavy from every side, lit by neither star nor moon.
In this example, maraḍ has nothing to do with the body. The night is ill, meaning it has lost light, clarity, and its normal brightness. This usage helps us understand that maraḍ in Arabic can mean weakness, darkness, and deficiency in a natural state.
Arabic poetry also uses expressions such as laylah marīḍah, an ill night, and arḍ marīḍah, an ill land. An ill land may be land whose condition has become corrupted, constricted, troubled, or disordered. This shows that Arabic can use the field of M R Ḍ for any condition whose health and balance have been disturbed.
In Arabic, tamrīḍ is not only making someone ill. It also means attending to the ill, caring for them, and seeking their recovery. This branch shows that from the same root come both the idea of illness and the idea of caring for the ill.
Morphological and semantic forms
The main verbal form is mariḍa / yamraḍu: he became ill or entered a state of illness. In the Qur’an, the form mariḍtu appears: I became ill.
The main noun of this root is maraḍ: illness, weakness, deficiency, or disorder in health. This noun may refer to the body or to the heart and inward self.
The descriptive form marīḍ refers to someone or something upon whom illness or weakness has come. Its Qur’anic plural is marḍā.
In non-Qur’anic Arabic, forms such as māriḍ, mimrāḍ, tamāruḍ, amraḍa, and marraḍa also appear. Tamāruḍ means pretending to be ill; mimrāḍ is someone who becomes ill often; and marraḍa al-marīḍ means to nurse the ill person and attend to his condition. These forms show that M R Ḍ in Arabic includes the state of illness, relation to illness, pretending illness, and care for the ill.
Use of the root in the Qur’an
In the Qur’an, the root م ر ض (M R Ḍ) appears in three main forms: mariḍtu, maraḍ, and marīḍ / marḍā.
The form mariḍtu appears in the speech of Abraham. In Al-Shuʿarāʾ 26:80, it says:
وَإِذَا مَرِضْتُ فَهُوَ يَشْفِينِ
And when I become ill, He is the One who heals me.
Here maraḍ refers to bodily illness and the human experience of illness. The human being becomes ill, and he sees healing from his Lord.
The forms marīḍ and marḍā appear in verses that discuss bodily illness, weakened ability, and proportioning obligation. In these cases, the Qur’an does not turn illness into a crime or moral flaw. It recognizes illness as a reality of human life and speaks of easing and removing hardship accordingly.
But the form maraḍ in many verses, especially in the expression fī qulūbihim maraḍ, points to disease of the heart and inward self. This is not bodily illness. It is a disorder in orientation, receptivity to truth, sincerity, or inner health.
Bodily illness and proportionate obligation
In verses that speak of marīḍ and marḍā, the intended meaning is usually bodily illness: a condition in which the human being does not truly have full ability to perform a duty. In these cases, the Qur’an does not make illness a sign of lesser human worth. Illness is a reality in the structure of the body and human life, and divine law deals with this reality.
From this angle, bodily illness in the Qur’an is joined with easing, removal of hardship, and proportioning the duty to ability. In Al-Nūr 24:61, it says:
لَيْسَ عَلَى الْأَعْمَىٰ حَرَجٌ وَلَا عَلَى الْأَعْرَجِ حَرَجٌ وَلَا عَلَى الْمَرِيضِ حَرَجٌ
There is no hardship upon the blind, no hardship upon the lame, and no hardship upon the ill.
The ill person is measured according to real ability, not according to a dry standard that ignores the condition of the body. This branch of the root shows that divine legislation is not opposed to the reality of creation. The same God who created the human body also recognizes weakness, illness, travel, inability, and changing human condition within His law.
Disease of the heart and disorder in receiving truth
Another major use of this root in the Qur’an is the expression fī qulūbihim maraḍ: in their hearts is disease. This expression does not refer to bodily illness. It refers to an inward condition in which the heart has left its innate health before truth.
In Al-Baqarah 2:10, it says:
فِي قُلُوبِهِم مَّرَضٌ فَزَادَهُمُ اللَّهُ مَرَضًا
In their hearts is disease, so God increased them in disease.
A healthy heart, before the clear signs of God, can accept, reflect, reform, and return. But a diseased heart does not receive the signs soundly. The same sign that awakens and gives life to a sound heart can become, for a diseased heart, a field of anxiety, concealment, stubbornness, or exposure of inward corruption.
In this sense, heart disease is a functional disorder in the human center of discernment. A person may have the outward appearance of faith, religious language, or social presence among believers, while inwardly a lasting ground for hypocrisy, confusion, desire, or insistence against truth has formed. Such a heart is called diseased not because of natural weakness, but because of an unhealthy orientation before truth.
The difference between heart disease and natural human vulnerability
A distinction must be kept between heart disease in the Qur’an and natural human vulnerabilities. Grief, initial fear, sincere questioning, searching doubt, passing anxiety, bodily weakness, or human suffering are not, by themselves, “heart disease” in the Qur’anic sense.
Heart disease becomes meaningful when an inward condition turns into a stable ground of deviation from truth: when a person insists upon deception, concealment, hypocrisy, desire, or stubbornness before the signs. Therefore, this concept must not be used to humiliate people who are suffering, ill, different, or vulnerable.
The Qur’an speaks to bodily illness with mercy and removal of hardship; and to heart disease with warning and exposure. This difference shows that illness of the body and corruption of heart-orientation are not the same in Qur’anic logic.
Suggested renderings in Forqan
- Mariḍtu: I became ill, I was unwell.
- Maraḍ in a bodily context: illness, sickness, disorder in bodily health.
- Maraḍ in a heart context: inward disease, disorder in healthy receptivity to truth, the heart leaving balance before truth.
- Fī qulūbihim maraḍ: in their hearts is disease; inwardly, there is a deviation from healthy receptivity to truth.
- Fa-zādahumu Allāhu maraḍā: so God increased them in disease; in the divine pattern, insistence upon deception and hypocrisy intensified the inward disease.
- Marīḍ / marḍā: ill person, ill people.
- Laysa ʿalā al-marīḍi ḥaraj: there is no hardship or constriction upon the ill person.
Summary
The root م ر ض (M R Ḍ) in Arabic begins from illness and the opposite of health, but its meaning is not limited to the body. Wherever something leaves health, strength, clarity, light, balance, or proper function, Arabic may use the semantic field of maraḍ for it.
In the Qur’an, this root appears for both bodily illness and heart disease. In the body, maraḍ is joined with mercy, easing, and removal of hardship. In the heart, maraḍ is a warning about inward disorder before truth, sincerity, justice, and the signs of The One God.
So this root carries two messages at once: on one side, God does not burden the ill and unable human being with crushing obligation; and on the other side, He warns the human being that the heart can also become diseased if he insists upon hypocrisy, concealment, desire, or stubbornness before truth.
True health in the Qur’an is not only bodily health. The heart must also remain in a state of health. If the heart becomes diseased, even the clearest signs may become, for that person, a field of testing, exposure, and increased deviation rather than guidance.