ق ر فq-r-f
(ض) قَرَفَ يَقْرِفُ قَرْفًاqarafa yaqrifu qarfan: to strip the bark off a tree, to peel something. (This verb is not used in the Quran.)
Form VIII (iftiʿāl) اِقْتَرَفَ يَقْتَرِفُ اِقْتِرَافًاiqtarafa yaqtarifu iqtirāfan: to earn deliberately; to commit (evil).
مُقْتَرِفٌmuqtarif pl. مُقْتَرِفُوْنَmuqtarifūna (active participle, ism fāʿil): one who earns, one who commits. ﴿وَمَنْ يَّقْتَرِفْ حَسَنَةً نَّزِدْ لَهُۥ فِيْهَا حُسْنًا﴾ (Ash-Shūrā 42:23); ﴿وَاَمْوَالُ نِ اقْتَرَفْتُمُوْهَا﴾ (At-Tawbah 9:24)