Main Entry: ¹coun·ter·mand

Pronunciation: \ˈkau̇n-tər-ˌmand, ˌkau̇n-tər-ˈ\

Function: transitive verb

Etymology: Middle English countermaunden, from Anglo-French cuntremander, from cuntre- counter- + mander to command, from Latin mandare — more at mandate

Date: 15th century

1 : to revoke (a command) by a contrary order
2 : to recall or order back by a superseding contrary order <countermand reinforcements>