Plā'gi-a-ry1, n.
(Synop., § 130), n. [Lat. plagiarius, a kidnapper, a literary thief, from plagium, kidnapping; It. & Sp. plagiario, Fr. plagiaire.]
Sense 1. A thief in literature; one who purloins another's writings, and offers them to the public as his own.
Sense 2. The crime of literary theft. [Obs.]
Such kind of borrowing as this, if it be not bettered by the borrower among good authors, is accounted plagiary. Milton.