س ف ھs-f-h
(س) سَفِهَ يَسْفَهُ سَفَهًا وَسَفَاهَةًsafiha yasfahu safahan wa-safāhatan: to be foolish; «سَفِهَ نَفْسَهُۥsafiha nafsahu»: he made a fool of himself. ﴿اِلَّا مَنْ سَفِهَ نَفْسَهُۥ﴾ (Al-Baqarah 2:130)
سَفِيْهٌsafīh pl. سُفَهَاءُsufahāʾu (adjective on the pattern of فَعِيْلٌfaʿīl): foolish, fool. ﴿سَيَقُوْلُ السُّفَهَآءُ مِنَ النَّاسِ﴾ (Al-Baqarah 2:142)
سَفَاهَةٌsafāhah (verbal noun, maṣdar): foolishness. ﴿اِنَّا لَنَرٰىكَ فِيْ سَفَاهَةٍ﴾ (Al-Aʿrāf 7:66)