1570s, from Middle French contravention, from Vulgar Latin *contraventionem, noun of action from past participle stem of contravenire (see contravene).[contravention etymology, contravention origin, 英语词源]
"Chiefly in France or in French contexts: something, especially a screen, that provides protection against the wind; (hence in extended use) a dividing screen or partition", Mid 19th cent. From French paravent from Italian paravento from para- + vento wind.