abrogator
n.a person or group that officially cancels a law, a treaty, or a contract. You use this when someone decides a rule or agreement is no longer valid.
n.a person or entity that formally cancels or repeals a law, treaty, or contract. Often used in legal or diplomatic contexts to describe the party ending a formal agreement.
“The abrogator of the treaty faced international criticism.”
“The government acted as the abrogator of the old trade agreement, replacing it with a more modern set of rules.”
“In international law, the abrogator must provide clear evidence of the legal grounds for ending a treaty, ensuring that the process remains transparent and respects the rights of all signatories.”
From abrogate + -or.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.