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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From dough + nut, 1809 because originally small, nut-sized balls of fried dough, or, more likely, from nut in the earlier sense of "small rounded cake or cookie", with the toroidal shape becoming common in the twentieth century. First attested in Knickerbocker’s History of New York, by Washington Irving, 1809.
ring, halo, annulus, anchor ring
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Classic usage
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