נָסַךְ (b. h.) to pour, cast. Y. Ber. I, 2ᵈ top, v. מָסַךְ II.
Pi. - נִסֵּךְ 1) to offer a libation. Succ. IV, 9 ולִמְנַסֵּךְ אומרים לו וכ׳ and they said to him who offered the libation (of water), raise thy hand. Ib. שפעם אחת ני׳ אחד וכ׳ for once it happened, that a priest poured the libation out at his feet. Snh. 62ᵇ זיבח … וני׳ וכ׳ if one sacrificed, burnt incense, and offered a libation (to an idol) &c.; a. fr.—Cant. R. to IV, 12 מֵאָן היו ישראל מנטרים כל וכ׳ (read: מְנַסְּכִים, v. Matt. K. a. l.) whence did the Israelites take wine for their festive gatherings during the forty years &c.? —2) to make wine forbidden (יֵין נֶסֶךְ) by the manipulation of a gentile suspected of dedicating it to idolatrous purposes. Keth. 27ᵃ; Sabb. 41ᵃ אין פנאי לנַסֵּךְ they do not take the time to manipulate the wine. Ab. Zar. 56ᵇ (in Chald. dict.) והא קא מנסך בידיה but might he not dedicate it to idolatry by putting his hand into it?; והא קא מנסך ברגל might he not do it with his foot (while treading the wine)? Gitt. V, 4 המנסך he who does damage to his neighbor by touching his wine for idolatrous purposes (v. interpret. ib. 52ᵇ). Y. Ab. Zar. IV, 44ᵃ bot. מנסך כל הבור he causes all the wine in the pit to be forbidden; a. fr.
Nif. - נִיסָּךְ to be offered as libation, to be poured on the altar. Pes. 22ᵃ כמים הנִיסָּסִין like the water which is poured on the altar, opp. הנשפכין which is poured out at the foot of the altar.
Hithpa. - הִתְנַסֵּךְ,
Nithpa. - נִתְנַסֵּךְ 1) same. Ib. המִתְנַּסְּכִים; a. fr. —2) to be made forbidden (as dedicated to idolatry). Y. Ab. Zar. l. c. נתנ׳ הבור וכ׳ if the wine in the pit has been manipulated and become forbidden, the jet of wine poured into the pit becomes forbidden (affecting the wine in the vessel).