Root ي ا س(y A s) has 10 unique word forms and appears 13 times in the Quran.

English gloss Renounce, Despair, Hopelessness, Deprive

Word Translation Occurrences
يَئِسَ despair, (have) despaired 4
يَئِسُواْ (have) despaired, they despair 4
ٱسۡتَيۡـَٔسُواْ they despaired 2
فَيَـُٔوسٞ then he gives up hope 2
لَيَـُٔوسٞ (is) despairing 2
تَاْيۡـَٔسُواْ despair 2
يَاْيۡـَٔسِ know 2
يَـُٔوسٗا (in) despair 2
يَئِسۡنَ have despaired 2
يَاْيۡـَٔسُ despairs 2
ٱسۡتَيۡـَٔسَ gave up hope 2