Law. [a. OF. tort-fesor, tort-faiseur, torfesor, f. tort wrong, evil + -fesor, faiseur doer. (In OF. tortfesor, tort is an adj. qualifying fesor; hence pl. torzfesors.)] One who is guilty of a tort; a wrong-doer, trespasser.
1659. Croke, Reports, II. (1669), 383. He is meerly a Tort feasor, and that Trespass liable against him to recover damages.
1670. Blount, Law Dict., Tortfeasor, a Doer of wrong, a Trespasser. Hence in later Law Dicts.
1883. Law Times Rep., XLIX. 11/2. Waiving the tort and bringing an action of indebitatus assumpsit for work and labour done against the tort feasor.
1886. Times, 27 Jan., 4. The father and son were here being sued by the plaintiff as joint tortfeasors.