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[mis-fee-zuh ns] /mɪsˈfi zəns/
noun, Law.
a wrong, actual or alleged, arising from or consisting of affirmative action.
the wrongful performance of a normally lawful act; the wrongful and injurious exercise of lawful authority.
Origin of misfeasance
From the Anglo-French word mesfesance, dating back to 1590-1600. See mis-1, feasance Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for misfeasance


(law) the improper performance of an act that is lawful in itself Compare malfeasance, nonfeasance
Derived Forms
misfeasor, noun
Word Origin
C16: from Old French mesfaisance, from mesfaire to perform misdeeds
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for misfeasance

"wrongful exercise of lawful authority or improper performance of a lawful act," 1590s, from Middle French mesfaisance, from mesfaisant, present participle of Old French mesfaire "to misdo," from mes- "wrongly" (see mis- (2)) + faire "to do," from Latin facere "to perform" (see factitious).

Online Etymology Dictionary, © 2010 Douglas Harper
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