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Old English Belzebub, Philistine god worshipped at Ekron (2 Kings i:2), from Latin, used in Vulgate for New Testament Greek beelzeboub, from Hebrew ba'al-z'bub "lord of the flies," from ba'al "lord" + z'bhubh "fly." By later Christian writers often taken as another name for "Satan," though Milton made him one of the fallen angels.
Note: Beelzebub also appears in Milton's <i>Paradise Lost</i> as one of the fallen angels, second only to Satan in power.
Note: By extension, a “Beelzebub” is any demon or evil spirit.
(Gr. form Beel'zebul), the name given to Satan, and found only in the New Testament (Matt. 10:25; 12:24, 27; Mark 3:22). It is probably the same as Baalzebub (q.v.), the god of Ekron, meaning "the lord of flies," or, as others think, "the lord of dung," or "the dung-god."
in the Bible, the prince of the devils. In the Old Testament, in the form Baalzebub, it is the name given to the god of the Philistine city of Ekron (II Kings 1:1-18). Neither name is found elsewhere in the Old Testament, and there is only one reference to it in other Jewish literature. See devil.