(س) فَتِيَ يَفْتٰى فَتَآءًfatiya yaftā fatāʾan: to be young. (This verb is not used in the Quran.)
فَتًيfatany pl. فِتْيَانٌ وَفِتْيَةٌfityān wa-fityah (noun (ism dhāt)): a youth; a young servant or attendant (because for the most part young boys were taken as servants). ﴿قَالُوْا سَمِعْنَا فَتًي يَّذْكُرُهُمْ﴾ (Al-Anbiyāʾ 21:60); ﴿اِنَّهُمْ فِتْيَةٌ اٰمَنُوْا بِرَبِّهِمْ﴾ (Al-Kahf 18:13)
فَتَاةٌfatāh pl. فَتَيٰتٌfatayt: a young woman; a slave-girl, a maidservant. ﴿مِّنْ فَتَيٰتِكُمُ الْمُؤْمِنٰتِ﴾ (An-Nisāʾ 4:25)
Form IV (ifʿāl) اَفْتٰى يُفْتِيْ اِفْتَآءًaftā yuftī iftāʾan: to give the solution to a question, to give a legal opinion (fatwā) (as if strengthening and invigorating someone intellectually). ﴿يٰٓاَيُّهَا الْمَلَاُ اَفْتُوْنِيْ فِيْ رُءْيَايَ﴾ (Yūsuf 12:43); ﴿قُلِ اللّٰهُ يُفْتِيْكُمْ فِيْهِنَّ﴾ (An-Nisāʾ 4:127)
Form X (istifʿāl) اِسْتَفْتٰى يَسْتَفْتِيْ اِسْتِفْتَآءًistaftā yastaftī istiftāʾan: to ask the solution to a question, to seek a legal opinion. ﴿يَسْتَفْتُوْنَكَ قُلِ اللّٰهُ يُفْتِيْكُمْ فِي الْكَلٰلَةِ﴾ (An-Nisāʾ 4:176)