What is Opus Latin for?

What is Opus Latin for?

opus (n.) “”a work, composition,”” especially a musical one, 1809, from Latin opus “”a work, labor, exertion”” (source of Italian opera, French oeuvre, Spanish obra), from Proto-Italic *opes- “”work,”” from PIE root *op- “”to work, produce in abundance.”” The plural, seldom used as such, is opera.

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