\Per"jure\, v. t. [imp. & p. p. {Perjured}; p. pr. & vb.
n. {Perjuring}.] [F. parjurer, L. perjurare, perjerare; per
through, over + jurare to swear. See {Jury}.]
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.

\Per"jure\, n. [L. perjurus: cf. OF. parjur, F.
parjure.]
A perjured person. [Obs.] --Shak.