v. 25B6; verb (formal) REPEAL, revoke, rescind, repudiate, overturn, annul, cancel, invalidate, nullify, void, negate, dissolve, countermand, declare null and void, discontinue; reverse, retract, remove, withdraw, abolish, put an end to, do away with, get rid of, end, stop, quash, scrap; Law disaffirm.
institute, introduce.