besmirch

He has a sense of honor and an instinct for revenge when he feels his honor has been besmirched.

Because the injustice and absurdity of English law had distorted and besmirched her own perfectly legitimate action.

Nowhere was there a cloud—a speckless day in the middle of a week that had threatened to keep the sky besmirched.

We know a butcher whose children are not merely dirty—they are fearfully and wonderfully besmirched by the hand of an artist.