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Meaning & History
Means "joy of the people" in Old English, a combination of the elements thiod meaning "people" and wynn meaning "joy" (compare Éowyn). This name was invented by J. R. R. Tolkien for his novel The Lord of the Rings (1954), where it is borne by a noblewoman of Rohan, who was the sister of Théoden and the mother of Éomer and Éowyn.