Jastrow: הָכֵן

הָכֵן, הָכֵין II m. (inf. Hif. of כּוּן, used as a technical term with ref. to הכינו, Ex. XVI, 5) preparing, designation for use on the Sabbath or Holy Day. Y. Sabb. III, 6ᵇ there is nothing that exists in the shape in which it is used, ואינו בהָכֵנוֹ which may not be considered as designated for use (on the Sabbath &c.). Y. Bets. 62ᵃ top ספק ה׳ where there is a doubt as to whether a thing has been ready for use when the festive day began. Ib. הגוי צריך ה׳ that which a gentile offers on a Holy Day requires designation in due time. Ib. I, beg. 60ᵃ בהָכֵינָהּ של אמה because its mother (the hen) was designated for slaughter on the Holy Day; a. fr. [In Babli הֲכָנָה.]