Main Entry: ¹cos·tume

Pronunciation: \ˈkäs-ˌtüm, -ˌtyüm also -təm or -ˌchüm\

Function: noun

Etymology: French, from Italian, custom, dress, from Latin consuetudin-, consuetudo custom — more at custom

Date: 1799

1 : the prevailing fashion in coiffure, jewelry, and apparel of a period, country, or class
2 : an outfit worn to create the appearance characteristic of a particular period, person, place, or thing <Halloween costumes>
3 : a person's ensemble of outer garments; especially : a woman's ensemble of dress with coat or jacket

— cos·tum·ey adjective