baalzebub

from Easton's 1897 Bible Dictionary
Baal-zebub
fly-lord, the god of the Philistines at Ekron (2 Kings 1:2, 3,
16). This name was given to the god because he was supposed to
be able to avert the plague of flies which in that region was to
be feared. He was consulted by Ahaziah as to his recovery.
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Baal-zebub, god of the fly
    

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