בִּיתֵּר, (prob. a contr. of בית תרעא) Bithter (Βιθθηρά), known as Bettar, a town in Southern Palestine, renowned as the centre of the Bar-Kokhba revolution against Hadrian. [As to its situation, v. Neub. Géogr. p. 130; Graetz Gesch. der Jud. IV, 168). Gitt. 57ᵃ כרך ב׳ the Fortress of B.—Y. Taan. IV, 69ᵃ top. Lam. R. to II, 2; IV, 18; a. fr.—Y. Ber. I, 3ᵈ, a. fr. הרוגי ב׳ those killed in the Bar-Kokhba revolution (whom Hadrian would not allow to be buried). Ḥall. IV, 10 (11) (Y. ed. ביתור; ed. Nap. בייתר, Ven. ביתיר) mentioned as a place not belonging to Palestine proper. Cant. R. to II, 17 בית תר.