Smith's Bible Dictionary (1863)
(festival of Jehovah), a Merarite Levite. (1 Chronicles 6:30)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
HAGGI'AH (festival of Jehovah), a Merarite Levite, 1 Chr 6:30.
Hitchcock's Bible Names (1869)
the Lord's feast