rabmag

from Easton's 1897 Bible Dictionary
Rabmag
Assyrian Rab-mugi, "chief physician," "who was attached to the
king (Jer. 39:3, 13), the title of one of Sennacherib's officers
sent with messages to Hezekiah and the people of Jerusalem (2
Kings 18:17-19:13; Isa. 36:12-37:13) demanding the surrender of
the city. He was accompanied by a "great army;" but his mission
was unsuccessful.
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Rabmag, who overthrows or destroys a multitude
    

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