中ちゅう衣い

noun

inner layer of clothing; inner garment (not underwear)

Refers to a middle layer worn between underwear and outerwear, such as a shirt or blouse. Often used in contrast with 上衣 (outer layer) and 下衣 (underwear).

See also: 上着 · 下衣

• 寒さむい日ひは、下した着ぎの上うえに中ちゅう衣いを重かさね着ぎする。

  On cold days, I layer an inner garment over my underwear.

• 中ちゅう衣いは肌はだに直ちょく接せつ触ふれないので、素そ材ざいを選えらびやすい。

  Since the inner layer doesn't touch the skin directly, it's easy to choose the material.