Remember, in January 1998, impeachment talk started before Clinton had perjured himself.
In a stunning turnaround, Robson recently admitted he had perjured himself at trial.
mid-15c. "swear falsely" (implied in perjured; late 13c. in Anglo-French), from Old French parjurer "to break one's word, renege on a promise" (11c.), from Latin periurare "to swear falsely, break one's oath" (see perjury). Reflexive sense is from 18c.