abrogate
[verb]
Synonyms: annul, discharge, dissolve, quash, vacate, void, abolish, abate, annihilate, invalidate, negate, nullify, undo, vitiate

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Antonyms: institute (as by enacting or decreeing), establish, fix (as a right, a quality, or a custom)
Contrasted words: establish, found, confirm, ratify, support, uphold
Related Words: abate, extinguish, blot out, cancel, obliterate, ruin, wreck

[TahlilGaran] English Synonym Dictionary ▲

ab‧ro‧gate /ˈæbrəɡeɪt/ verb [transitive] formal
[Date: 1500-1600; Language: Latin; Origin: past participle of abrogare, from ab- 'away' + rogare 'to ask, suggest a law']
to officially end a legal agreement, practice etc:
Both governments voted to abrogate the treaty.
—abrogation /ˌæbrəˈɡeɪʃən/ noun [uncountable and countable]

[TahlilGaran] Dictionary of Contemporary English ▲