To behave badly; with a reflexive pronoun, i.e. to misdemean oneself.(verb)
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Use "misdemean" in a sentence
"I would misdemean to rebuke to the libels of snots from the fleshambles, the canalles."
"One white juvenile pleaded guilty yesterday to a misdemean - or count of accessory after the fact to a robbery that occurred Jan. 18."
"Knowing that Hughs was to be released that morning early, he had, with the circumspection and foresight of his character, reasoned thus: 'I shan't lie easy in my bed, I shan't hev no peace until I know that low feller's not a-goin' to misdemean himself with me."