Smith's Bible Dictionary (1863)
(the Lord knows); one of David’s 9 sons, born in Jerusalem. (1 Chronicles 14:7) In the lists in Samuel the name is Eliada.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BEELI'ADA (Baal knows), a son of David, 1 Chr 14:7; called Eliada in 2 Sam 5:16; 1 Chr 3:8.
Hitchcock's Bible Names (1869)
an open idol