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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Learned borrowing from Latin caveat (“may he/she/it beware”), third-person singular present active subjunctive of caveō (“to beware of”). Doublet of show, both ultimately from Proto-Indo-European *(s)kewh₁- (“to heed, look, feel, take note of”).
caution
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Classic usage
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