ص م مṣ-m-m
(س) صَمَّ يَصَمُّ صَمَمًاṣamma yaṣammu ṣamaman (original form: صَمِمَ يَصْمَمُṣamima yaṣmamu): to be hard of hearing or not to hear at all, to be deaf. ﴿ثُمَّ عَمُوْا وَصَمُّوْا كَثِيْرٌ مِّنْهُمْ﴾ (Al-Māʾidah 5:71)
اَصَمُّaṣammu pl. صُمٌّṣumm (on the pattern of اَفْعَلُafʿalu; original form: اَصْمَمُaṣmamu pl. صُمْمٌṣumm): deaf. ﴿صُمٌّۢ بُكْمٌ عُمْيٌ﴾ (Al-Baqarah 2:18)
Form IV (ifʿāl) اَصَمَّ يُصِمُّ اِصْمَامًاaṣamma yuṣimmu iṣmāman: to make someone deaf. ﴿فَاَصَمَّهُمْ وَاَعْمٰٓى اَبْصَارَهُمْ﴾ (Muḥammad 47:23)