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tr.v. con·tra·vened, con·tra·ven·ing, con·tra·venes
1. To act or be in violation of (a law, directive, or principle, for example); violate: a sailor who contravened a direct order; a regulation that contravened the new tax policy.
2. To be inconsistent with; be contrary to: "Such a marriage ... contravenes much of what we know about marriages in this period" (Carol Meyers).
[French contrevenir, from Medieval Latin contrāvenīre, to transgress, from Late Latin, to oppose : Latin contrā-, contra- + Latin venīre, to come; see gwā- in Indo-European roots.]