You searched for: “nullify
1. To counteract the force or effectiveness of or to have the effect of canceling something out.
2. To revoke something or to make it invalid; negate, revoke, veto, void, and undo.
3. To make a legal agreement or decision to have no legal force.
4. Etymology: from Late Latin nullificare, "to esteem lightly, despise, to make nothing"; from Latin nullus, "not any" + root of facere, "to make".
(Latin: no, not; to refuse, to nullify; to deny)