Easton's Bible Dictionary (1897)
Despair, one of the four sons of Reuel, the son of Esau (Gen. 36:13, 17).
Smith's Bible Dictionary (1863)
(fear), son of Reuel and grandson of Esau.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
MIZ'ZAH (fear), a grandson of Esau, and one of the chiefs of Edom. Gen 36:13, 2 Sam 21:17; 1 Chr 1:37.
Hitchcock's Bible Names (1869)
defluxion from the head