מְסִיפָס, (= מסיפסף; סוּף; cmp. פְּסִיפָּס, פִּסְפָּס with which our w. interchanges) border-mark, partition consisting of wooden or stone pegs, contrad. to מחיצה or כותל partition wall. Erub. 72ᵃ (Ms. O. twice פסיפס, v. Rabb. D. S. a. l. note 10), opp. to מחיצה עשרה a partition ten hand-breadths high. B. Bath. 2ᵇ במ׳ בעלמא (Ms. M. בפְסִיסִין, v. Rabb. D. S. a. l. note) where there are only pegs as border marks, opp. כותל. Ib. bot. במ׳ (Ms. M. פס׳, emended מס׳). Ab. Zar. 70ᵇ; Y. ib. V, 44ᵈ bot. חצר החלוקה במ׳ a court which is divided off by mere marks (cmp. מְסוּגִין). Tosef. Sabb. VIII (IX), 22 [read:] כדי לעשותו מ׳) Var. ed. Zuck. (ed. מסופות) large enough to be used for a marking peg.—Pl. מְסִיפְסִין. Yalk. Ex. 422 [read:] כמין מ׳ היו עשויות מלמעלה a sort of marks were on top (to distinguish between the Holy and the Holy of Holies; ib. 370 כמין פספסין היה וכ׳).