As a personal prenomen this name is a dialectic abridgment of "Abun" ("Abin," "Rabin"; see Jastrow, "Dictionary," 147a; compare Pesiḳ, xxx. 192b; Yer. Ḥag. i. 76c; Yer. Suk. v. 55d), and appears exclusively in Palestinian literary sources (Yer. Ter. viii. 45c; Yer. Pes. iii. 29d; Yer. Sheḳ. iv. 48b; Yer. Yeb. iii. 4c). Several amoraim so cited are mentioned under the full name as it appears in the Babylonian Talmud (see, for example, Abin B. Ḥiyya, Abin b. Kahana); and a Palestinian scholar of the fourth century is cited once under the name of "Bun b. Bisna" (Yer. Yeb. iv. 7b), and once (ib. i. 2d) under that of "Abun b. Bizna."