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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
From late Middle English approbacioun, from Old French approbacion (French approbation), from Latin approbatio, from approbare (“to assent to as good, approve, also show to be good, confirm”), from ad (“to”) + probare (“approve, commend”), from probus (“good”).
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Classic usage
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