Root ق ن ط(q n T) has 6 unique word forms and appears 6 times in the Quran.

English gloss Despair, Hopelessness, Discouraged

Word Translation Occurrences
تَقۡنَطُواْ despair 2
قَنَطُواْ they have despaired 2
قَنُوطٞ (and) despairs 2
ٱلۡقَٰنِطِينَ the despairing 2
يَقۡنَطُ despairs 2
يَقۡنَطُونَ despair 2