Lewis Short
Beelzĕbŭb | Beelzĕbŭl, ūlis (noun M) : or , , , = 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.
Charlton T. Lewis, Charles Short, A Latin Dictionary