Friendly, one who maintained true allegiance to king David (1 Kings 1:8) when Adonijah rebelled.
Rei
1 verse
1 Kings
1 Kings 1:8
But Zadok the priest, and Benaiah the son of Jehoiada, and Nathan the prophet, and Shimei, and Rei, and the mighty men which belonged to David, were not with Adonijah.
From Easton's Bible Dictionary
Matthew George Easton, 1897