adiuro

ad-iūrō āvī, —, āre,

to swear to in addition, attest besides, add to an oath: praeter commune ius iurandum haec, L.—To add an oath, swear to, confirm by oath: omnia: adiuras id te non esse facturum: in quae adactus est verba, L.—To call to witness, attest, swear by: Stygii caput, V.: te, Ct.