The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*swé
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*swe-dʰh₁-sḱ-
- Latinsuēscō
- Latincōnsuēscō
- Latinconsuētūdinem
- Italiancostume
- Frenchcostume
- Englishcostume
- Proto-West Germanic*plehan
- Old Englishpleġan
- Proto-West Germanic*plegō
- Proto-West Germanic*plegōn
- Old Englishplegian
- Middle Englishpleyen
- Proto-West Germanic*plegō
- Old Englishplega
- Middle Englishpleye
- Englishplay
- Japaneseコスプレ (kosupure)
- English todaycosplay
Borrowed from Japanese コスプレ (kosupure), which is a clipping of コスチュームプレイ (kosuchūmu purei), from a compound of English costume + play. The verb is derived from the noun.
Etymology from Wiktionary, CC BY-SA 4.0.