ح م مḥ-m-m
(ن) حَمَّ يَحُمُّ حَمًّاḥamma yaḥummu ḥamman: to heat something.
حَمِيْمٌḥamīm (adjective on the pattern of faʿīl): hot always and in every circumstance; boiling water. ﴿وَسُقُوْا مَآءً حَمِيْمًا فَقَطَّعَ اَمْعَآءَهُمْ﴾ (Muḥammad 47:15); figuratively: a warm friend. ﴿كَاَنَّهُۥ وَلِيٌّ حَمِيْمٌ﴾ (Fuṣṣilat 41:34)
(س) حَمَّ يَحَمُّ حَمَمًاḥamma yaḥammu ḥamaman: to be black, to be dark.
يَحْمُوْمٌyaḥmūm: black smoke. ﴿وَّظِلٍّ مِّنْ يَّحْمُوْمٍ﴾ (Al-Wāqiʿah 56:43)