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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
(early 17th century) From a Romance language, see French concentrer, Italian concentràre, Spanish concentrar; alternatively from Medieval Latin/New Latin concentrō + -ate (verb-forming suffix). Compare also earlier concentre and German konzentrieren. By surface analysis, con- + center (centr- in compounds) + -ate (verb-forming suffix).
dressed ore
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Classic usage
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