a member of David's council, who became one of Absalom's advisers in his rebellion and hanged himself when his advice was overruled (II Samuel 15:12–17:23)
Ahithophel in American English
(əˈhɪθəˌfɛl)
noun
Bible
a counselor of David and associate of Absalom in rebellion against David: 2 Sam. 15-17