Easton's Bible Dictionary (1897)
Empty; spoiler, a son of Zippor, and king of the Moabites (Num. 22:2, 4). ) to curse them; but in vain (Josh. 24:9).
Smith's Bible Dictionary (1863)
(spoiler), son of Zippor, king of the Moabites, who hired Balaam to curse the Israelites; but his designs were frustrated int he manner recorded in (Numbers 22:24) (B.C. 1451.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BA'LAK (spoiler), the king of Moab who hired Balaam to curse Israel. Num 22-24; Josh 24:9; Jud 11:25; Mic 6:5; Rev 2:14.
Hitchcock's Bible Names (1869)
who lays waste or destroys