Countermand

Webster's Dictionary of the English Language

·noun A contrary order; revocation of a former order or command.

II. Countermand ·vt To Oppose; to revoke the command of.

III. Countermand ·vt To Prohibit; to Forbid.

IV. Countermand ·vt To revoke (a former command); to cancel or rescind by giving an order contrary to one previously given; as, to countermand an order for goods.