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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From late Middle English congestioun, from Old French [Term?], from Latin congestĭō (“heap, accumulation”), from congerō (“to bring together, accumulate, heap up”), formed by the root gerō (“to carry”) and the prefix con-.
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Classic usage
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