فتك

فَاتِكٌ ذ [act. part. n. of 1; generally meaning Assassinating; or an assassin: ] one who comes upon another suddenly, or at unawares, or takes him by surprise, with some evil, or hateful, act, or [more commonly] with slaughter: and accord. to IDrd, one who, when he purposes a thing, does [ it ]: (Ham p. 43:) any one who attempts, or ventures upon, great, or formidable, affairs: (Az, TA:) bold, or daring; (S, O, K;) courageous: (K:) pl. فُتَّاكٌ. (S, O, K.) ― -b2- [Hence,] فَاتِكُ القَلْبِ (assumed tropical:) Penetrating, sharp, or vigorous, and effective, in mind. (TA.) ― -b3- And حَيَّةٌ فَاتِكَةٌ لِلسَّبُعِ (tropical:) [ A serpent that attacks the beast of prey ]. (TA.) ― -b4- And جَارِيَةٌ فَاتِكَةٌ (tropical:) A young woman who cares not for what she does nor for what is said to her. (TA.)