Unclean
来自Big Physics
Safin（讨论 | 贡献）2022年4月29日 (五) 00:58的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/unclean ref] From [https://en.wikipedia.org/wiki/Middle_English Middle English] unclene,…”的新页面）
wiktionary
From Middle English unclene, from Old English unclǣne, equivalent to un- + clean.
etymonline
unclean (adj.)
Old English unclæne, "morally impure, defiled, unfit for food," from un- (1) "not" + clean (adj.). Literal sense of "dirty" is recorded from mid-13c.
