Beelzĕbŭb, indecl., or Beelzĕbŭl, ūlis, m., = Βεελζεβούβ or Βεελζεβούλ, Heb. or; in eccl. Lat.
Beelzebub , the chief of evil spirits , Vulg. Luc. 11, 15; Tert. adv. Marc. 4, 26; Prud. στεφ. 2, 267.
·noun The title of a heathen deity to whom the Jews ascribed the sovereignty of the evil spirits; he...
Webster's Dictionary of the English Language
same as Baal-zebub ...
Hitchcock's Bible Names Dictionary