Jastrow: כַּכָּא

כַּכָּא m. (collect. noun), pl. כַּכֵּי (אכך or חכך, dropped guttural; cmp. אַכָּכָא) molars, in gen. teeth. Targ. Jud. XV, 19 ed. Lag., a. Kimḥi Var. (ed. כֵּיפָא, h. text מכתש). Targ. Y. Num. XXI, 35 כַּכֵּיה ושיניה his molars and his (front) teeth. Ib. XI, 33; a. fr.—Pes. 113ᵃ לא תעקר כ׳ never have a molar tooth extracted. Gitt. 69ᵃ לכ׳ for pain of the molars. B. Kam. 92ᵇ (prov.) שיתין … לכ׳ דקל וכ׳ sixty pains befall the teeth of him who hears his neighbor’s sounds (at meals) and is himself not permitted to eat (not being invited). Ab. Zar. 28ᵃ; a. e.—כ׳ דאקלידא, v. אַקְלִידָא.—B. Bath. 167ᵃ כַּכֵּיה דבי"ת Ar., Ms. H. (Ms. M. בבי, v. Rabb. D. S. a. l. note; ed. גַּגֵּיה דבי"ת וכרעיה) the teeth, the upper and the lower horizontal lines of the letter Beth.—[כַּכֵּי cakes, v. כַּעֲכָא.]