1. perjure - Noun
2. perjure - Verb
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.
To make a false oath to; to deceive by oaths and protestations.
A perjured person.
Source: Webster's dictionary