accoutrement
n. US //əˈkutɝmənt// UK //ɐkˈuːtɹɪmənt// ac·cou·trement
Probably partly from Middle French accoustrement, acoustrement, acoutrement (French accoutrement), from accoustrer, from Old French acostrer (“arrange, sew up”), and partly from accoutre + -ment. First attested in the 1540s.