costume

英 ['kɒstjuːm] 美 ['kɑstum]

cosplay（角色扮演）就是英文 Costume Play 的简略写法，一般指利用服装、饰品、道具以及化妆来扮演动漫作品、游戏中的角色。

costume 戏服，古装

来自拉丁词consuetudinem, 习惯，习俗，词源同custom. 来自con-, 强调 , -suet, 自己的，词源同self. 即自身的习惯，后指历史时期的穿着服装，古装。

costume: costume: [18] Ultimately, costume and custom are the same word. Both come from Latin consuētūdō ‘custom’. But whereas custom was an early borrowing, from Old French, costume took a lengthier and more circuitous route via Italian costume ‘custom, fashion, dress’ and French costume. In the early 18th century the word referred to the custom or fashion of a particular period as it related to the representation of the clothes, furniture, etc of that period in art.

In the 19th century this passed into ‘mode of dress appropriate to a particular time or place’, and thence (completing a semantic development rather similar to that of habit) into simply ‘garments, outfit’.
=> custom
costume (n.): 1715, "style of dress," an art term, from French costume (17c.), from Italian costume "fashion, habit," from Latin consuetudinem (nominative consuetudo) "custom, habit, usage." Essentially the same word as custom but arriving by a different etymology. From "customary clothes of the particular period in which the scene is laid," meaning broadened by 1818 to "any defined mode of dress." Costume jewelry is first attested 1933.
costume (v.): 1823, from costume (n.). Related: Costumed; costuming.

1. Even from a distance the effect of his fox costume was stunning.: 即使从远处看，他的狐狸戏服也很抢眼。

3. The performers, in costume and make-up, were walking up and down backstage.: 上了妆穿着戏服的演员在后台走来走去。

4. She patted Mona, taking care not to disturb her costume.: 她轻轻拍了拍莫娜，小心翼翼地，生怕弄乱她的戏服。