Simple past tense and past participle of smirch.(verb)
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Use "smirched" in a sentence
"I have no fancy for having my good name smirched in that way."
"In an impetuous flight of fancy he saw his good name smirched, his practice laid waste."
""Your good name smirched, your wife attacked, and the wee lass-" The thin line of his mouth clamped tight for a moment, and his stringy throat bobbed once as he swallowed."