I. ˈkau̇ntə(r)+ˌ- noun
Etymology: alteration of earlier contremeur, from Middle French contremur, from contre- counter- + mur wall — more at mure
1. : a second or supplementary wall : a wall raised behind another that might be breached
2. : a wall raised by besiegers confronting a defense wall
II. | ̷ ̷ ̷ ̷+ transitive verb
( -ed/-ing/-s )
: to protect or fortify with a countermure