כּוֹס I, c. (b. h.; or כנס, v. Ges. Thes., a. Hebr. Dict.10 s. v.)
כּוֹס I, cup, also a drink. Tam. III, 4. Erub. 65ᵇ בג׳ … בכיסו בכוֹסוֹ בכעסו man’s character is found out in three things, in his money bag, in his cup (when drinking) and in his anger; Der. Er. Zutta ch. V.—Keth. 75Keth. 75ᵇ, sq., v. בָּדַק. Pes. 105ᵃ קדושה על הכ׳ sanctification (of the Sabbath or Holy Day) over a cup of wine. Ib. אם אין לו אלא כ׳ אחד if he has only enough wine for one cup. Sabb. XIV, 3 כ׳ עיקרים, v. עִיקָּר; a. fr.—Pl. כּוֹסוֹת. Kel. XXII, 1; Y. Ab. Zar. II, end, 42ᵃ, v. הַנָּחָה. Men. 28ᵇ, v. אֲלֶכְסַנְדְּרִי. Pes. X, 1, a. fr. ארבע כ׳ four cups of wine to be drunk on the Passover night; a. fr.
כּוֹס I, cavity. Par. II, 5 (two black or white hairs) בתוך כ׳ אחד in one follicle (v. גוּמָּא).—Pl. as ab. Ib. Y. Ab. Zar. l. c. הן כ׳ הן גומותkosoth and gummoth mean the same things.—בֵּית הכּוֹסוֹת the second stomach of ruminants. Ḥull. III, 1 (42ᵃ), v. comment. a. הַבְלִילָא. Ḥull. 49ᵃ; 50ᵇ עובי בית הכ׳ the folds (thick walls) of the etc.; a. fr.