Brown Driver Briggs

 Sennacherib = "Sin multiplied brothers" (Sin = the moon)
1. son of Sargon, father of Esarhaddon, and king of Assyria from 705-
681 BC; attacked Judah during the reign of king Hezekiah and Judah
was delivered when in response to the prayer of Hezekiah an angel
smote 185,000 Assyrian soldiers