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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English oft (also ofte, often > Modern English often), from Old English oft (“often”), from Proto-West Germanic *oftu, *oftō, from Proto-Germanic *uftō (“often”). Cognate with Saterland Frisian oafte (“oft, often”), West Frisian oft, ofte (“oft, often”), Dutch oft (“oft, often”), German oft (“oft, often”). More at often.
frequently, often, oftentimes, ofttimes
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Classic usage
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