Definition of "perjure"

perjure

/ˈpɜː(ɹ)d͡ʒə(ɹ)/

verb
third-person singular simple present perjures, present participle perjuring, simple past and past participle perjured
1. (reflexive) To knowingly and willfully make a false statement of witness while in court.
2. (transitive) 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.
  Quotations
  Want will perjure the ne'er-touched vestal.
  c. 1606–1607, William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene xii]
3. (transitive) To make a false oath to; to deceive by oaths and protestations.
  Quotations
  And with a virgin innocence did pray / For me, that perjured her.
  1608, John Fletcher, The Faithful Shepherdess
noun
plural perjures
1. (obsolete) A perjured person.
  Quotations
  He comes in like a perjure, wearing papers
  c. 1595–1596 (date written), William Shakespeare, “Loues Labour’s Lost”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act IV, scene iii]