Non"suit` (?), n. (Law) A neglect or failure by the plaintiff to follow up his suit; a stopping of the suit; a renunciation or withdrawal of the cause by the plaintiff, either because he is satisfied that he can not support it, or upon the judge's expressing his opinion. A compulsory nonsuit is a nonsuit ordered by the court on the ground that the plaintiff on his own showing has not made out his case.

Non"suit`, v. t. [imp. & p. p. Nonsuited; p. pr. & vb. n. Nonsuiting.] (Law) To determine, adjudge, or record (a plaintiff) as having dropped his suit, upon his withdrawal or failure to follow it up. "When two are joined in a writ, and one is nonsuited." Z. Swift.

Non"suit`, a. Nonsuited. D. A. Tyng.