"give formal approval to," late 14c., autorisen, from Old French autoriser "authorize, give authority to" (12c.), from Medieval Latin auctorizare, from auctor (see author (n.)). Modern spelling from 16c. Related: Authorized; authorizing.
1. We are willing to authorize the president to use force if necessary.
2. He said that he needed to get his supervisor to authorize my refund.
3. It would certainly be within his power to authorize a police raid like that.
4. Only the President could authorize the use of the atomic bomb.
5. Under no circumstances will I authorize an extension of this investigation!