operae

operae

1. inflection of opera:
   1. nominative/vocative plural
   2. genitive/dative singular

• operae in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)