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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from Late Latin indigenus (“native, born in a country”), from indi- (indu-), an old derivative of in (“in”), gen- the root of gignō (“give birth to”), and English -ous. Compare indigene, Ancient Greek ἐνδογενής (endogenḗs, “born in the house”), and the separately formed piecewise doublet endogenous. Unrelated to Indian.
autochthonal, autochthonic, autochthonous, endemic
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Classic usage
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