mid-15c., "accounting officer, one who renders accounts," from Old French acuntant (Modern French accomptant), from present participle of accompter (see account (v.)). Sense of "professional maker of accounts" is recorded from 1530s. The word also was an adjective in Middle English, "accountable; liable to render accounts" (early 15c.).
1. He's not a bad chap—quite human for an accountant.
2. Accountant John Talbot is a wizard with numbers.
3. She has an appointment with her accountant.
4. The accountant checked this unnecessary spending in good time.
5. He was going to college at night, in order to become an accountant.