ف ت نf-t-n
(ض) فَتَنَ يَفْتِنُ فَتْنًا وَفُتُوْنًاfatana yaftinu fatnan wa-futūnan: to put gold into the fire to tell the pure from the base; hence (1) to test (2) to seduce, to turn away from the path (3) to cast into affliction, to torment. ﴿وَفَتَنّٰكَ فُتُوْنًا﴾ (Ṭā Hā 20:40)
فِتْنَةٌfitnah pl. فِتَنٌfitan (noun (ism dhāt)): trial; mischief, persecution. ﴿وَالْفِتْنَةُ اَشَدُّ مِنَ الْقَتْلِ﴾ (Al-Baqarah 2:191)
مَفْتُوْنٌmaftūn (passive participle (ism mafʿūl)): one afflicted with a trial, mad. ﴿بِاَيِّكُمُ الْمَفْتُوْنُ﴾ (Al-Qalam 68:6)