n.
Pronunciation: ' käs- ˌ tüm, - ˌ tyüm also -t ə m or - ˌ chüm
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 costume s >
3 : a person's ensemble of outer garments especially : a woman's ensemble of dress with coat or jacket
– cos · tum · ey adjective