Root ك ظ م(k Z m) has 4 unique word forms and appears 6 times in the Quran.

English gloss Keep silent, Conceal, Suppress anger, Filled with anger

Word Translation Occurrences
كَظِيمٞ a suppressor, a suppressor, suppresses grief, suppresses grief 4
كَٰظِمِينَۚ choked, choked 2
كَظِيمٌ (is) filled with grief, (is) filled with grief 2
مَكۡظُومٞ (was) distressed, (was) distressed 2
وَٱلۡكَٰظِمِينَ and those who restrain, and those who restrain 2