Plaintiff

Plain"tiff, a. See Plaintive. [Obs.] Prior.

Plain"tiff (?), n. [F. plaintif making complaint, plaintive; in Old French equiv. to plaignant complainant, prosecutor, fr. plaindre. See Plaint, and cf. Plaintive.] (Law) One who commences a personal action or suit to obtain a remedy for an injury to his rights; -- opposed to defendant.