Βεελζεβούλ (WH, App., 159, Rec., βεελζεβούλ), ὁ, indecl. (Heb. בַּעַל, lord, and the Talmudic זִבּוּל, from זֶבֶל, dung (Dalman, Gr., 137.n), or perh. זִבֻל, habitation, but, see DB, iv, 409f.; DCG, i, 181). The AV, RV, Beelzebub, comes through Vg. from 4Ki.1:2, בַּעַל זִבוּב, lord of flies (LXX, βάαλ μυῖα, Sm., βεελζεβούβ),
Beelzebul, Beelzebub, a name of Satan: Mat.10:25 12:24, 27 Mrk.3:22, Luk.11:15, 18 19.†
(From Abbott-Smith. LSJ has no entry)