英语词源字典 - 在线词源网站

tidy (v.)[tidy 词源字典]: "to make neat, set in order," 1821, from tidy (adj.). Related: Tidied; tidying.[tidy etymology, tidy origin, 英语词源]
untidy (v.): "make untidy," 1891, from untidy (adj.). Related: Untidied; untidying.