Easton's Bible Dictionary (1897)
King of the Ammonites at the time of the Babylonian captivity (Jer. 40:14). He hired Ishmael to slay Gedaliah who had been appointed governor over the cities of Judah.
Smith's Bible Dictionary (1863)
king of the Ammonites at the time of the destruction of Jerusalem by Nebuchadnezzar.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BA'ALIS (son of exaltation), a king of the Ammonites. Jer 40:14.
Hitchcock's Bible Names (1869)
a rejoicing; a proud lord