素そ衣いMeanings1nounwhite clothesarchaicArchaic term for white garments, typically plain or undyed. Found in classical texts; not used in modern everyday language.古こ典てん文ぶん学がくでは、僧そう侶りょが素そ衣いをまとう描びょう写しゃがある。In classical literature, there are descriptions of monks wearing white robes.