The word ワンピース (wanpīsu) came up in my Japanese lessons the other day. You could translate it as ‘one-piece’, and it refers to an article of clothing, but which one?

ワンピース (wanpīsu) [wàńpíꜜìsù] actually refers to a dress or other piece of clothing that comes in one piece, such as a bathing costume / swimsuit, and can be shortened to ワンピ(wanpi). It was borrowed from the English term one-piece, which is an adjective meaning ‘composed of a single integral unit, or so appearing’, e.g. a one-piece metal hammer, or a one-piece article of clothing, especially a swimsuit [source].

ワンピース (wanpīsu) or One Piece is also a manga series, an anime TV series and media franchise. Here’s some music from one of the One Piece spin offs, One Piece film RED, sung by Ado:

A similar word is ツーピース (tsūpīsu) [tsɨːpʲiːsɨ], which means a two-piece suit, particular women’s suits. It comes from English two-piece, which refers to a suit or dress in two pieces [source].

Similar words are also found in Korean: 원피스 (wonpiseu) [wʌ̹npʰi(ː)sʰɯ] = dress, and 투피스 (tupiseu) [ˈtʰu(ː)pʰi(ː)sʰɯ] = two-piece suit / dress [source].

Another word for dress in Japanese is ドレス (doresu), which was borrowed from English dress [source].

Incidentally, the English word dress comes from Middle English dressen (to arrange, put in order, to direct or aim), from Anglo-Norman / Old French drecier (to stand up, get to one’s feet), from Late Latin *dīrēctiāre (to guide, direct, put in order), from Classical Latin dīrēctus (laid straight, direct, straight), from Proto-Italic *dwizrektos, from dīrigō (lay straight, direct, distribute) [source].

Words from the same roots include address, adriot (deft, dexterous, skillful) and direct in English, dresser (to raise, build, lift, prepare) in French, addirizzare (to straighten, correct, direct, guide) in Italian, díreach (straight, direct, exact) in Irish, and derecho (straight, upright, right, correct) in Spanish [source].