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Classic usage
Reading level: hard
Estimated CEFR level: B1 — Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English holow, holowe, holwe, holwȝ, holgh, from Old English holh (“a hollow”), from Proto-West Germanic *holh, from Proto-Germanic *hulhwą, perhaps from Proto-Indo-European *ḱólḱwos. Cognate with Old High German huliwa and hulwa, Middle High German hülwe. Related to hole.
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Classic usage
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