فَتَكَ بِهِ, (Ṣ, MA, O, Mṣb, Ḳ,) aor. ـُ {يَفْتُكُ} and ـِ {يَفْتِكُ}, inf. n. فَتْكٌ and فُتْكٌ and فِتْكٌ (Ṣ, O, Mṣb, Ḳ *) and فُتُوكٌ (MA, Ḳ *) and فَتَاكَةٌ, (MA,) He assassinated him; i. e. he came to him when he (the latter) was inadvertent, and assaulted him and slew him; (Ṣ, MA,* O;) thus it signifies accord. to an explanation of الفَتْكُ by A' Obeyd; and this is the primary signification: (Az, TA:) if he have not given him [for أَعْطَانَا in my original (an obvious mistranscription) I read أَعْطَاهُ] assurance of safety, it behooves him to make that known to him: (A' Obeyd, TA:) he assaulted him; or he slew him at unawares; andافتك↓ is a dial. var. thereof: (Mṣb:) he seized an opportunity that he (another) offered him (Ḳ, TA) by his inadvertence, (TA,) and slew him: or he wounded him openly: (Ḳ, TA:) or it has a more general meaning with respect to both of these acts: (Ḳ,* TA:) Fr says that الفَتْكُ signifies the man's slaying openly. (TA.) It is said in a trad., قَيَّدَ الإِيمَانُ الفَتْكَ لَا يَفْتُكُ مُؤْمِنٌ [i. e. The giving assurance of safety has inhibited (or, emphatically, inhibits) the slaying at unawares,, &c.: one who gives assurance of safety shall not slay at unawares,, &c.: the like has been said above: see also an explanation of the former clause of the trad. in art. قيد]. (Ṣ, O.)

And فَتَكَ, aor. ـُ {يَفْتُكُ} and ـِ {يَفْتِكُ}, inf. n. فَتْكٌ and فُتْكٌ and فِتْكٌ (O, Ḳ) and فُتُوكٌ, (Ḳ,) He purposed an affair and executed it: (O:) or he embarked in, or performed, an affair that occasioned uneasiness, and to which the mind invited; as alsoافتك↓: (Ḳ:) the latter verb is said by Fr to be a dial. var. of the former. (O.)

[Hence,] فَتَكَ فِى الأَمْرِ, (Ḳ, TA,) inf. n. فَتْكٌ, (TA,) ‡ He persisted, or persevered, in the affair; syn. لَجَّ, or أَلَحَّ. (Accord. to different copies of the Ḳ; in the TA the former. [The same meaning is also assigned to فَنَكَ.])

And فَتَكَ فِى الخُبْثِ, [in the CK فى الخُنْبُثِ,] inf. n. فُتُوكٌ, (O, Ḳ, TA,) ‡ He exceeded the usual bounds in that which was evil, abominable, foul, or unlawful. (Ḳ, TA.)

فَتَكَ فِى صِنَاعَتِهِ † He was skilful in his art, or craft. (TA.)

And فَتَكَتْ said of a girl, or young woman, means ‡ She cared not for what she did nor for what was said to her. (O, Ḳ, TA.) [See also فَتَكَتْ.]

فَتَّكْتُ القُطْنَ, (IDrd, O,) inf. n. تَفْتِيكٌ, (IDrd, O, Ḳ,) I separated, plucked asunder, or loosened, the cotton: (IDrd, O, Ḳ:*) so in one of the dials.; (IDrd, O;) it is of the dial. of Asd. (TA.)

المُفَاتَكَةُ signifies المُمَاهَرَةُ; (O, Ḳ, TA;) so says Ibn-ʼAbbád, (O, TA,) and so Z; (TA;) i. e. ‡ The making a show of skill, one with another: (TḲ:) [but for المُمَاهَرَةُ, the CK has المُجَاهَرَةُ:] one says, فاتك صَاحِبَهُ i. e. مَاهَرَهُ ‡ [He made a show of skill, app. in competition, with his companion]. (TA.)

And ‡ The falling to the thing (مُوَاقَعَةُ الشَّىْءِ) with vehemence; such as eating, (Ḳ, TA,) and drinking, (TA,) and the like. (Ḳ, TA.) And فاتك الأَمْرَ † He threw himself, or plunged, into the affair; syn. وَاقَعَهُ: (Ḳ, TA:) and the subst. is فِتَاكٌ↓ [having the meaning of the inf. n.: but why this is not called the inf. n. (for such it is accord. to analogy) I do not see]. (TA.)

And فاتك فُلَانًا (inf. n. مُفَاتَكَةٌ, TA) i. q. دَاوَمَهُ ‡ [app. as meaning ‡ He kept continually, or constantly, to such a one: agreeably with what here follows]. (O, Ḳ, TA.)

فاتكت الإِبِلُ الحَمْضَ † The camels [kept continually, or constantly, to the plants called حَمْض, desiring them as food and finding them wholesome: (see the part. n., below:) or] confined themselves to the حمض, not pasturing upon anything therewith. (TA.) And فاتكت الإِبِلُ المَرْعَى † The camels consumed with their mouths [or devoured] the pasture. (TA.)

فاتك فُلَانًا He gave to such a one that which he mentioned as the price of what he had to sell: in the case of his bargaining with him and not giving him anything, one says فاتحهُ. (IAạr, O, Ḳ.) فاتك التَّاجِرُ فِى البَيْعِ is expl. in the A as meaning The trader exceeded the due bounds, or acted unjustly, in offering the thing for sale and naming the price. (TA.)

see 1, in two places.

مَا أَفْتَكَهُ means How persistent, or persevering, is he! (TA.)

تفتّك بِأَمْرِهِ He executed, or performed, his affair; or kept, or applied himself, constantly, or perseveringly, to it; not consulting any one. (ISh, O, Ḳ.)

فَاتِكٌ [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]: (Ḥam p. 43:) any one who attempts, or ventures upon, great, or formidable, affairs: (Az, TA:) bold, or daring; (Ṣ, O, Ḳ;) courageous: (Ḳ:) pl. فُتَّاكٌ. (Ṣ, O, Ḳ.)

[Hence,] فَاتِكُ القَلْبِ † Penetrating, sharp, or vigorous, and effective, in mind. (TA.)

And حَيَّةٌ فَاتِكَةٌ لِلسَّبُعِ ‡ [A serpent that attacks the beast of prey]. (TA.)

And جَارِيَةٌ فَاتِكَةٌ ‡ A young woman who cares not for what she does nor for what is said to her. (TA.)

تَفْتِيكٌ [app. from the Pers. تَفْتِيك signifying “fine, soft, wool,” and “soft, downy, kids' hair,”] A compress of rags which is put upon a wound in order that the moisture may become absorbed [thereby]: a subst. like تَمْتِينٌ and تَنْبِيتٌ: and post-classical. (TA.)

إِبِلٌ مُفَاتِكَةٌ لِلْحَمْضِ Camels that keep continually, or constantly, to the [plants called] حَمْض, desiring them as food and finding them wholesome. (O, TA. [See also 3.])