Verb
to cease [ ceased ; ceased ]
to rescind [ rescinded ; rescinded ] , {law}
to undo [ undid ; undone ]
to revoke [ revoked ; revoked ] , {law}
to annul [ annulled ; annulled ] , {law}
to nullify [ nullified ; nullified ] , {law}
to vacate [ vacated ; vacated ]
to cancel [ cancelled / {Am.} canceled ; cancelled / {Am.} canceled ] , {law}
to invalidate [ invalidated ; invalidated ] , {law}
to abrogate [ abrogated ; abrogated ] , {pol.}
to abolish [ abolished ; abolished ] , {law}
to quash [ quashed ; quashed ] , {law}
to recall [ recalled ; recalled ]
to abate [ abated ; abated ] , {law}
to disprove [ disproved ; disproved / disproven ]