Jair [Jā'ur] jehovah enlightens, arouseth or who diffuses light.

1. A son of Segub and grandson of Hezron, and reckoned with the tribe of Manasseh (Numbers 32:41; Deut. 3:14; 1 Chron. 2:22). Founder of a tribal family (2 Sam. 20:26).
2. A Gileadite who judged Israel for twenty-three years, succeeding Tola in office. He may have been related to No. 1 (Judg. 10:3-5).
3. A Benjamite whose son, Mordecai, was Esther’s cousin (Esther 2:5).
4. The father of Elhanan, who slew Lahmi the brother of the giant, Goliath (1 Chron. 20:5). He is called Jaare-oregim in 2 Samuel 21:19.