ک ف یk-f-y
(ض) كَفٰى يَكْفِيْ كِفَايَةًkafā yakfī kifāyatan (original form: كَفَيَ يَكْفِيُkafaya yakfiyu): to suffice; to suffice (on someone's behalf), to protect (against an enemy). ﴿وَكَفٰى بِاللّٰهِ شَهِيْدًا﴾ (An-Nisāʾ 4:79); ﴿فَسَيَكْفِيْكَهُمُ اللّٰهُ﴾ (Al-Baqarah 2:137); ﴿اِنَّا كَفَيْنٰكَ الْمُسْتَهْزِءِيْنَ﴾ (Al-Ḥijr 15:95)
كَافٍkāf (active participle, ism fāʿil): one who suffices. ﴿اَلَيْسَ اللّٰهُ بِكَافٍ عَبْدَهُۥ﴾ (Az-Zumar 39:36)
Form VIII (iftiʿāl) اِكْتَفٰى يَكْتَفِيْ اِكْتِفَاءًiktafā yaktafī iktifāʾan: to be content with something, considering it sufficient (this verb is not used in the Quran).