verb (used with object), perjured, perjuring.
to render (oneself) guilty of swearing falsely or of willfully making a false statement under oath or solemn affirmation: The witness perjured herself when she denied knowing the defendant.
Origin: 1475–85; Related forms
< Latin perjūrāre
to swear falsely, equivalent to per-
through, i.e., beyond the limits (see per-
) + jūrāre
to swear, literally, to be at law, derivative of jūs jus