iūs iūrandum (often as one word, iūsiūr-), iuris iurandi, an oath: Dabo ius iurandum nil esse, T.: ad ius iurandum popularīs adigere, S.: idem ius iurandum adigit Afranium, made him take, Cs.: iure iurando civitatem obstringere, bind under oath, Cs.: iure iurando teneri, be bound by an oath.