operositas

operōsitās f (genitive operōsitātis); third declension

1. elaborate or painstaking work

Third-declension noun.

• “operositas”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• "operositas", 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)
• “operositas”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.