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tortfeasor

or tort-fea·sor

[tawrt-fee-zer, -zawr, -fee-]
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noun Law.
  1. a person who commits a tort.

Origin of tortfeasor

1650–60; < Anglo-French tortfesor wrongdoer (French tortfaiseur). See tort, feasance, -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for tortfeasor

n.

1650s, from Old French tortfesor, from tort "wrong, evil" (see tort) + -fesor "doer," from Latin facere "to make" (see factitious).

Online Etymology Dictionary, © 2010 Douglas Harper