المُضَاعَف — Doubled (Geminate) Verbs
Muda'af (مُضَاعَف, "doubled") verbs are verbs in which the second and third root letters are identical. Because two identical consonants come together, idghām (assimilation) applies: the two letters merge into one letter with a shadda.
Muda'af verbs are not weak (muʿtall) verbs. Their root letters are all consonants — it is the doubling that creates morphological complexity.
Examples
| Root | Unassimilated | After Idghām | Meaning |
|---|---|---|---|
| غ-ض-ض | غَضَضَ | غَضَّ | to lower, to subdue |
| ح-ل-ل | حَلَلَ | حَلَّ | to untie, to be permissible |
| م-ر-ر | مَرَرَ | مَرَّ | to pass by |
The Imperative (أَمر) Problem
Standard imperative formation: 1. Drop the ḥarf al-muḍāraʿah (يـ) 2. Give the last letter a sukūn 3. Add hamzat al-waṣl if needed to begin the word
For muda'af verbs, step 2 creates a problem: the idghām already contains a hidden sukūn (the first of the two merged letters). Adding another sukūn causes iltiqāʾ al-sākinayn (two sukūns colliding) — impermissible.
Two Valid Solutions
| Solution | Process | Result (from غَضَّ) | Result (from حَلَّ) |
|---|---|---|---|
| Keep idghām + fataḥ | Give the merged letter a fataḥ instead of sukūn | اُغُضَّ | حُلَّ |
| Break the idghām | Revert to original unmerged form, apply standard amer rules | اِغضِض | اِحلُل |
Both Forms Are Equally Correct
There is no condition or preference between the two forms. Choose freely based on comfort. The Quran uses both patterns in different places.
The Fataḥ Is Not Iʿrāb
In the "keep idghām" solution, the fataḥ on the final letter does NOT indicate manṣūb. It is purely phonological — given to avoid the iltiqāʾ al-sākinayn. This applies only in the imperative (amer) form of muda'af verbs.
Verb غَضَّ / يَغُضُّ in the Quran
The verb غَضَّ (to lower, to subdue) appears in two contexts:
| Usage | Construction | Meaning |
|---|---|---|
| With direct mafʿūl | يَغُضُّونَ أَصوَاتَهُم | they lower their voices |
| With preposition مِن | يَغُضُّ مِن بَصَرِه | he lowers his gaze (Sūrah Al-Nūr) |
Both constructions are valid.
Connection to Phonetic Harmony
The idghām in muda'af verbs follows the same phonological rule (iltiqāʾ al-sākinayn avoidance) that governs tajweed. In classical Arabic, tajweed rules were simply the natural speech patterns of Arabs — not a special layer applied only to Quran recitation.
Examples from the Quran
| Āyah | Form | Analysis |
|---|---|---|
| يَغُضُّونَ أَصوَاتَهُم (Al-Ḥujurāt 49:3) | muḍāriʿ jamʿ | they subdue their voices; root غ-ض-ض |
From Surah Yusuf Session 7 — Further Examples in the Mudāriʿ Majzūm
Which Form Is More Common in Practice?
Beyond "both forms are equally correct," the teacher added a usage note: breaking the idghām and reverting to the default/original form is, in practice, the more common choice in everyday usage — even though grammar permits either.
The amr/jussive of several more geminate verbs appeared in sequence while studying Mūsā's duʿāʾ in Sūrat Ṭāhā and elsewhere:
| Root | Verse | Form Shown | Meaning |
|---|---|---|---|
| ح-ل-ل | وَاحْلُلْ عُقدَةً مِّن لِّسَانِي (Ṭāhā 20:27) | broken idghām (اِحلُل) | "untie the knot from my tongue" — Mūsā's duʿāʾ for eloquence |
| ش-د-د | اشدُد بِهِ أَزرِي (Ṭāhā 20:31) | broken idghām (اشدُد) | "reinforce my strength through him [Hārūn]" |
| م-س-س | وَلَم يَمسَسنِي بَشَرٌ (Maryam 19:20) | broken idghām, jazm via لَم | "no man has touched me" — Maryam's protest |
| م-س-س | وَإِن يَمسَسكَ اللَّهُ بِضُرٍّ (al-Anʿām 6:17) | broken idghām, jazm via إِن (conditional) | "if Allah were to touch you with harm" |
| ض-ل-ل | وَمَن يُضلِلِ اللَّهُ فَمَا لَهُ مِن هَادٍ (recurring refrain) | broken idghām, jazm via مَن (conditional) | "whomever Allah sends astray, there is no guide for him" |
| ش-ق-ق | وَمَن يُشَاقِّ اللَّهَ فَإِنَّ اللَّهَ شَدِيدُ العِقَاب | idghām kept (Form III) | "whoever opposes Allah — Allah is severe in punishment" |
These extend the original غَضَّ/حَلَّ pair with a fuller run of Quranic jussive examples, all confirming the same two-option rule: keep the idghām with a compensating fataḥah, or break it back to the unmerged original. See also the wider semantic range of the root ح-ل-ل (untying, dissolving, releasing, and even Allah's wrath "settling": فَيَحِلَّ عَلَيكُم غَضَبِي, Ṭāhā 20:81) in the Surah Yusuf Session 7 notes.
Session References
- Surah Al-Hujuraat Session 4: Definition and classification of muda'af; two amer forms demonstrated with غَضَّ and حَلَّ; application in 49:3 (يَغُضُّونَ).
- Surah Yusuf Session 7: Usage note that breaking the idghām is more common in practice; further Quranic jussive examples (احلل، اشدد، يمسس، يضلل، يشاقّ) drawn from Mūsā's duʿāʾ in Ṭāhā and elsewhere.