Dictionary
per•jure
Pronunciation: (pûr'jur), [key]—
v.t., -jured, -jur•ing.
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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.