*יָסַת (cmp. אֲסִי a. עָשָׂה) to do habitually.—Denom. וֶסֶת, הֶיסֵּת.
Hif. - הִסִּית, הֵסִית [b. h., by way of syncope, forms resembling Kal of סית, as יְסִיתְךָ = יֵיסִי׳, וַיָּסֶת = וַיַּסֶּת &c.] to cause to do, stir up, instigate. Sot. 35ᵃ (expl. ויהס … אל, Num. XIII, 30) הִסִּיתָן בדברים (he quieted them, because) he (apparently) instigated them (against Moses). Ḥag. 5ᵃ עבד שמַסִּיתִין עליו רבו ונִיסַּת וכ׳ Ms. M. (ed. שרבו מסיתין לו) a slave against whom they incite his master and he (the master) is influenced by the instigation (ed.: a slave whose master, when they incite him, yields &c.), what help is there for him?—B. Bath. 16ᵃ (ref. to Job II, 3) כביכול כאדם שמסיתין וכ׳ (v. Rabb. D. S. a. l.) like a human being, as it were, that is influenced by instigation. Ib. יורד ומַסִּית Ms. R. (ed. ומתעה) Satan comes down and incites (to sin). Y. Snh. VII, 25ᵈ top יַסִּית עצמו וכ׳ he will stir himself up (become bold) and incite others; a. fr.—Esp. מַסִּית or מֵסִית (with ref. to Deut. XIII, 7, sq.) he who stirs people up to worship idols. Snh. VII, 10. Y. ib. l. c. מ׳ … בלשון גבוה וכ׳ the massith speaks in a loud voice, the maddiaḥ (v. נָדַח) in a low voice; a. fr.—Pl. מַסִּיתִים, מַסִּיתִין. Ab. d’R. N. ch. XVI, end האפיקורסין והמ׳ ומדיחין (ed. Schechter … המינין … המשומדים המסורות).
Nif. - נִיסַּת, נִיסֵּית to be stirred up, give way to instigation; to be impassioned. Ḥag. 5ᵃ, v. supra. B. Bath. 16ᵃ, v. supra. Sifré Deut. 89 מצוה ביד הנ׳ וכ׳ he who was to be incited to idolatry must first lay his hand on &c.—Y. Snh. l. c.; Y. Yeb. XVI, 15ᵈ bot. מכיון שהוא ניסית וכ׳ since he is prevailed upon (to worship idols), he is no longer a wise man. Yalk. Gen. 127 (play on נ̇פ̇ת̇ל̇י) [read:] נִ֗יסֵּיתִי פּ֗וּתֵּיתֵי ת̇ל̇יתי וכ׳ I was prevailed upon, I was per suaded, I gave my sister the preference over myself; Gen. R. s. 71 (corr. acc.). [For נִיסֵּית she was married, v. נָשָׂא.]