justaucorps

noun, plural just·au·corps [zhoo-stuh-kawr, -kohr; French zhyst-oh-kawr] /ˈʒu stəˌkɔr, -ˌkoʊr; French ʒüst oʊˈkɔr/.

1. a fitted, knee-length coat, characterized by wide turned-back cuffs and stiff flared skirts, worn especially by men in the 17th and 18th centuries.