annul

verbs

declare invalid
"The contract was annulled"; "void a plea"
annul, avoid, invalidate, nullify, quash, void
is derived from
annulment
cancel officially
"He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence"
annul, countermand, lift, overturn, repeal, rescind, reverse, revoke, vacate
is derived from
annulment