כִּיסְתָא I, = כִּיסָא, bag. Ber. 24ᵃ bot. בכ׳ (Ms. F. בכִיסְתֵיה) in the bag (of the T’fillin). Sabb. 105ᵇ top דעבדה כי׳ Ms. M. (ed. כי כסתא, Rashi כי כי׳, v. Rabb. D. S. a. l.) when he shapes the garment so as to form (a kind of) a pocket. Pes. 72ᵃ ודמי ליה כמאן דמנחא בכִיסְתֵיה and it was to him as if lying in his pocket (ever ready to recite it); Keth. 50ᵃ; Meg. 7ᵇ בכִיסֵיה. [Keth. 98ᵃ, v. כְּסִיתָא.]