denounce

Etymology

From Old French denuncier, from Latin dēnūntiō (“to announce, to denounce, to threaten”), from de + nūntiō (“to announce, to report, to denounce”), from nūntius (“messenger, message”).

verb

1. (transitive, obsolete) To make known in a formal manner; to proclaim; to announce; to declare.
   And full of peace, denouncing wrath to come 1667, John Milton, Paradise Lost
2. (transitive) To criticize or speak out against (someone or something); to point out as deserving of reprehension, etc.; to openly accuse or condemn in a threatening manner; to invoke censure upon; to stigmatize; to blame.
   to denounce someone as a swindler, or as a coward
   Mr. Cameron had a respite Thursday from the negative chatter swirling around him when he appeared outside 10 Downing Street to denounce the murder a day before of a British soldier on a London street. May 23 2013, Sarah Lyall, “British Leader’s Liberal Turn Sets Off a Rebellion in His Party”, in New York Times, retrieved 2013-05-29
3. (transitive) To make a formal or public accusation against; to inform against; to accuse.
   to denounce a confederate in crime
   to denounce someone to the authorities
4. (transitive, obsolete) To proclaim in a threatening manner; to threaten by some outward sign or expression; make a menace of.
   to denounce war; to denounce punishment
5. (transitive) To announce the termination of; especially a treaty or armistice.
   It would be possible to “denounce” (leave) the Convention altogether, but short of that, legislation to restore the death penalty would place the UK government in breach of its treaty obligations under the ECHR; it would breach international law. 29 Dec 2020, Matthew Scott, “How could Priti Patel reintroduce the death penalty?”, in BarristerBlogger (blog), archived from the original on 2020-12-30
   A Contracting State may denounce this Convention, or Part II or Part III of the Convention, by a formal notification in writing addressed to the depositary. 2021, Legislative Council of Hong Kong, “Sale of Goods (United Nations Convention) Ordinance”, in Government of Hong Kong Special Administrative Region Gazette, page A3313
6. (US, historical) To claim the right of working a mine that is abandoned or insufficiently worked.