E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Ahithophel,
or Achitophel. A treacherous friend and adviser. Ahithophel was Davids counsellor, but joined Absalom in revolt, and advised him like the oracle of God (2 Sam. xvi. 2023). In Drydens political satire, Achitophel stands for the Earl of Shaftesbury. (See ACHITOPHEL.)