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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
From Middle English reptil, from Old French reptile, from Late Latin rēptile, neuter of reptilis (“creeping”), from Latin rēpō (“to creep”), from Proto-Indo-European *rep- (“to creep, slink”) (Pokorny; Watkins, 1969).
reptilian
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Classic usage
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