ھ م مh-m-m
(ن) هَمَّ يَهُمُّ هَمًّاhamma yahummu hamman (original form: هَمَمَ يَهْمُمُhamama yahmumu): to resolve firmly upon an act, to summon one's resolve; also to cause grief. ﴿وَلَقَدْ هَمَّتْ بِهِۦ وَهَمَّ بِهَا﴾ (Yūsuf 12:24); ﴿وَهَمُّوْا بِمَا لَمْ يَنَالُوْا﴾ (At-Tawbah 9:74)
Form IV (ifʿāl) اَهَمَّ يُهِمُّ اِهْمَامًاahamma yuhimmu ihmāman: to cause anxiety, to make uneasy. Only once in the Quran: ﴿وَطَآئِفَةٌ قَدْ اَهَمَّتْهُمْ اَنْفُسُهُمْ﴾ (Āl ʿImrān 3:154)
Form VIII (iftiʿāl) اِهْتَمَّ يَهْتَمُّ اِهْتِمَامًاihtamma yahtammu ihtimāman: to be concerned about a task; to pay special attention to it (this verb is not used in the Quran).