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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from Latin cartilāginōsus (“full of cartilage, very gristly”), from cartilāgō (“cartilage, gristle”) + -ōsus (“-ous, -ose”); compare French cartilagineux. Equivalent to cartilage + -ous, with modifications made to its morphology.
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Classic usage
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