ac·cept / akˈsept/ • v. [tr.] 1. consent to receive (a thing offered). ∎  agree to undertake (an offered position or responsibility). ∎  give an affirmative answer to (an offer or proposal); say yes to: he would accept their offer | [intr.] Tim offered Brian a lift home and he accepted. ∎  receive as adequate, valid, or suitable: the college accepted her credit cards are widely accepted. ∎  regard favorably or with approval; welcome. ∎  agree to meet (a draft or bill of exchange) by signing it. ∎  (of a thing) be designed to allow (something) to be inserted or applied: vending machines that accepted 100-yen coins.2. believe or come to recognize (an opinion, explanation, etc.) as valid or correct. ∎  be prepared to subscribe to (a belief or philosophy): accept the tenets of the Episcopalian faith. ∎  take upon oneself (a responsibility or liability); acknowledge. ∎  tolerate or submit to (something unpleasant or undesired): they accepted the need to cut expenses.

accept (recognize) a formal language. See automaton, finite-state automaton.

accept XIV. — (O)F. accepter or L. acceptāre, f. accept-, pp. stem of accipere, f. AC- + capere take.
So acceptable XIV. — (O)F. — late L. acceptance XVI. — OF. acceptation XV. — (O)F. — late L.