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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 avowen, from Old French avouer, from Latin advocare (“to call to, call upon, hence to call as a witness, defender, patron, or advocate”), from ad (“to”) + vocare (“to call”). Doublet of advoke, avouch, and advocate. Not related to vow.
affirm, verify, assert, aver, swan, swear
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Classic usage
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