costumase

Costumase is a term with little to no standing in English-language reference works. There is no widely accepted definition, and it does not appear in major dictionaries as a distinct concept. Consequently, when encountered in texts, “costumase” is usually assumed to be a misspelling of “costume” or “costumes,” or else it is used as a proper noun in a specific, localized context. Without reliable sources, its intended meaning cannot be determined generically.

Possible uses of the string “costumase” are therefore limited to three broad possibilities: a typographical error in a discussion of clothing or theatrical attire; a coined brand name, project title, or fictional location; or a transliteration or adaptation in a non-English language where the spelling reflects local morphology. In such cases, the meaning depends entirely on the source and there is no standard interpretation.

Etymology is likewise unclear. If derived from “costume,” the form shows nonstandard morphology rather than a conventional English plural or suffix. If it is a proper name, etymology would follow the naming history of the particular brand, place, or work.

See also: costume, costumes, costuming, cosplay, attire.