smirches
smir-ches
verb
To make something dirty or damage a person's reputation or character.
"The scandal smirches his good name."
noun
Dirty marks or stains, especially on someone's character or reputation.
"There were smirches on the old document."
Thesaurus
Synonyms: blot, slur, smudge, smear, daub, spot, besmirch, stain, denigrate, sully, calumniate, defame