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Classic usage
Reading level: hard
Estimated CEFR level: B1 — Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English aproven, appreoven, appreven, apreven, borrowed from Old French aprover, approver, approuvir, appreuver (“to approve”), from Latin approbō, from ad + probō (“to esteem as good, approve, prove”). Doublet of approbate. By surface analysis, ad- + prove.
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Classic usage
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