- smudge (v.)
[smudge 词源字典]
- early 15c., smogen "to soil, stain, blacken," of obscure origin. Related: Smudged; smudging. Meaning "make a smoky fire" is from 1860, hence smudge-pot (1903). The noun meaning "a stain, spot, smear" is first attested 1768, from the verb.[smudge etymology, smudge origin, 英语词源]