deiuratio

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

dējūrātĭo (dējĕr-), ōnis, f. [deiuro],

an oath (post-class.): testari sub dejuratione (al. dejeratione), Tert. Poenit. 4: DEIERATIO ESTO APVD MAGISTRATOS, Inscr. Fratr. Arv. ap. Marin. p. 70.