Easton's Bible Dictionary (1897)
God his salvation, a son of David, 2 Sam. 5:15 = Elishama, 1 Chr. 3:6.
Smith's Bible Dictionary (1863)
(God is my salvation), one of David’s sons, born after his settlement in Jerusalem.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ELISHU'A (God his salvation), a son of David, 2 Sam 5:15; 1 Chr 14:5; called Elishama in 1 Chr 3:6.
Hitchcock's Bible Names (1869)
God is my salvation