Root و س و س(w s w s) has 4 unique word forms and appears 5 times in the Quran.

English gloss Whisper, Tempt, Prompt, Suggest, Doubt, Suspicion, Wicked, Anxiety

Word Translation Occurrences
فَوَسۡوَسَ Then whispered, Then whispered 4
تُوَسۡوِسُ whispers, whispers 2
ٱلۡوَسۡوَاسِ (of) the whisperer, (of) the whisperer 2
يُوَسۡوِسُ whispers, whispers 2