operum

operum is a Latin form of opus, meaning “work, task; (opus est) there is need of”. It is the genitive plural neuter noun.

Found 184 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Gallico 2.12.5: Celeriter vineis ad oppidum actis, aggere iacto turribusque constitutis, magnitudine operum, quae neque viderant ante Galli neque audierant, et celeritate Romanorum permoti legatos ad Caesarem de deditione mittunt et petentibus Remis ut conservarentur impetrant.

All forms of opus (declension table)

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.