Per·jure v. t. [imp. & p. p. Perjured p. pr. & vb. n. Perjuring.]
 1. To cause to violate an oath or a vow; to cause to make oath knowingly to what is untrue; to make guilty of perjury; to forswear; to corrupt; -- often used reflexively; as, he perjured himself.
 Want will perjure
 The ne'er-touched vestal.   --Shak.
 2. To make a false oath to; to deceive by oaths and protestations. [Obs.]
 And with a virgin innocence did pray
 For me, that perjured her.   --J. Fletcher.
 Syn: -- To Perjure, Forswear.
 Usage: These words have been used interchangeably; but there is a tendency to restrict perjure to that species of forswearing which constitutes the crime of perjury at law, namely, the willful violation of an oath administered by a magistrate or according to law.