countermand
verb [ T ] formal uk/ˌkaʊn.təˈmɑːnd/ us/ˌkaʊn.t̬ɚˈmænd/
取消，撤回（命令）;重新发布（命令）
to change an order that has already been given, especially by giving a new order
Synonyms: annul lift rescind reverse revoke
Compare: overturnrepeal verb