English

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Etymology

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mis- +‎ demean

Verb

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misdemean (third-person singular simple present misdemeans, present participle misdemeaning, simple past and past participle misdemeaned)

  1. (archaic, reflexive, with a reflexive pronoun) To behave badly.
    he misdemeaned himself
  2. (intransitive) To misbehave.
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References

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