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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Latin acacia, from Ancient Greek ἀκακία (akakía, “shittah tree”), either from Proto-Indo-European *h₂eḱ- (“sharp”) (compare ἀκή (akḗ, “point”)) or more likely a Pre-Greek word. First attested before 1398. Doublet of cassie.
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Classic usage
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