|Easton's Bible Dictionary|
Forests of the weavers, a Bethlehemite (2 Samuel 21:19), and the father of Elhanan, who slew Goliath. In 1 Chronicles 20:5 called JAIR.
Int. Standard Bible Encyclopedia
ja'-a-re-or'-e-jim, -or'e-gim (ya`are'oreghim): In 2 Samuel 21:19, given as the name of a Bethlehemite, father of Elhanan, who is said to have slain Goliath the Gittite (compare 1 Samuel 17). The name is not likely to be a man's name; the second part means "weavers" and occurs also as the last word of the verse in the Massoretic Text, so it is probably a scribal error here due to repetition. The first part is taken to be
(1) an error for ya`ir (see JAIR), which is to be read in the parallel section in 1 Chronicles 20:5;
(2) in 2 Samuel 23:24 Elhanan is the son of Dodo, also a Bethlehemite, and Klostermann would read here Dodai as the name of Elhanan's father.
David Francis Roberts
Jaareoregim (1 Occurrence)
2 Samuel 21:19 There was again war with the Philistines at Gob; and Elhanan the son of Jaareoregim the Bethlehemite killed Goliath the Gittite's brother, the staff of whose spear was like a weaver's beam. (WEB KJV ASV WBS)