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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Medieval Latin cosmologia, from Ancient Greek κόσμος (kósmos, “world”) + -λογία (-logía, “treating of”), combination form of -λόγος (-lógos, “one who speaks (in a certain manner)”). By surface analysis, cosmo- + -logy.
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Classic usage
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