Ahimaaz in Wikipedia
"brother of anger", "irascible" in Hebrew.
(1.) The father of Ahinoam, the wife of Saul (1 Samuel 14:50).
(2.) The son and successor of Zadok in the office of high
priest (1 Chronicles 6:8, 53). On the occasion of the revolt
of Absalom he remained faithful to David, and was of service
to him in conveying to him tidings of the proceedings of
Absalom in Jerusalem (2 Sam. 15:24-37; 17:15-21). He was swift
of foot, and was the first to carry to David tidings of the
defeat of Absalom, although he refrained, from delicacy of
feeling, from telling him of his death (2 Sam. 18:19-33).
Zadok High Priest of Israel Succeeded by
(3.) A man of Solomon's court. (1 Kings 4:7,15) He was married
to Basemath, daughter of Solomon. Some suggest that he may
have been the same as nr. 2.