Other forms: contravened, contravening, contravenes
To contravene is to act against a rule or a law. Contravene the regulations.
It is the formal word and belongs to notices and to court judgements. To contravene a rule need not be deliberate, which is what separates it from defying one.
1verbcontraveneTo act against a rule or a law.
“The sign warned that parking there would contravene the byelaw.”
contravene is a breaking.
Latin contravenire means to come against, from contra plus venire, to come.
Proto-Indo-European
*gʷem-
Latin
contraveniō
Middle French
contravenir
English, today
contravene
From Middle French contravenir (French contrevenir), from Latin contraveniō.
Etymology from Wiktionary, CC BY-SA