ف ح شf-ḥ-sh
(ک) فَحُشَ يَفْحُشُ فُحْشًاfaḥusha yafḥushu fuḥshan: to be exceedingly evil; to be shameless, to commit evil openly. (This verb is not used in the Quran.)
فَاحِشَةٌfāḥishah pl. فَوَاحِشُfawāḥishu (active participle (ism fāʿil), used as a noun (ism dhāt)): an act of indecency, an open evil. ﴿وَلَا تَقْرَبُوا الْفَوَاحِشَ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ﴾ (Al-Anʿām 6:151); ﴿اِنَّهُۥ كَانَ فَاحِشَةً وَّسَآءَ سَبِيْلًا﴾ (Al-Isrāʾ 17:32)
فَحْشَآءُfaḥshāʾu (noun (ism dhāt)): a foul sin, open indecency. ﴿اِنَّ الصَّلٰوةَ تَنْهٰى عَنِ الْفَحْشَآءِ وَالْمُنْكَرِ﴾ (Al-ʿAnkabūt 29:45)