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English word magnum opus comes from Latin magnus (Great. Important. Large, big. Loud.), Latin magnum
magnus (Latin)
Great. Important. Large, big. Loud.
magnum (Latin)
magnum opus (Latin)
magnum opus (English)
A great or important work of literature, music or art, a masterpiece.. The best, most popular, or most renowned achievement of an author or artist, representing their major life effort.