The story
- Old French · derived fromacostrer“arrange, sew up”
- Middle French · derived fromaccoustrement, acoustrement, acoutrement
- English todayaccoutrement
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.
Etymology from Wiktionary, CC BY-SA 4.0.