peiero

pēierō, perierō, or periūrō āvī, ātus, āre

per+iuro, to swear falsely, perjure oneself : verbis conceptis: quā re periuras?H.: Hic putat esse deos, et peierat, Iu.: ius peieratum, a false oath , H.: periurati dii, offended by perjury , O.