Etymology
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misbehave (v.)

"conduct oneself improperly or indecorously," late 15c.; see mis- (1) "badly, wrongly" + behave. Related: Misbehaved; misbehaving.

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misrule (v.)

late 14c., misreulen, "rule badly, govern unwisely or oppressively," also "conduct oneself badly, misbehave;" from mis- (1) "badly, wrongly" + rule (v.). Related: Misruled; misruling.

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forfeit (v.)
mid-14c., " transgress, offend, misbehave;" late 14c., "to lose by misconduct," from forfeit (n.) or from Anglo-French forfet, Old French forfait, past participle of forfaire. Related: Forfeited; forfeits; forfeiting.
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