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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Latin lustrātus (“lustrated”), perfect passive participle of lustrō (see -ate (verb-forming suffix)), from lustrum (“ritual purification”) + -ō (first conjugation verb-forming suffix), q.v. In reference to imparting luster, further via senses of Middle French lustre, from Old Italian lustro.
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Classic usage
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