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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English birchen, birken, from Old English bircen, *biercen, beorcen (“made of birch, birchen”), from Proto-Germanic *birkīnaz (“made of birch”). Cognate with English birchen, Dutch berken (“birchen”), Low German berken (“birchen”), German birken (“birchen”).
birch, birchen
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Classic usage
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