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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 experiment, from Old French esperiment (French expérience), from Latin experimentum (“experience, attempt, experiment”), from experior (“to experience, to attempt”), itself from ex + *perior, in turn from Proto-Indo-European *per-.
experimentation
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Classic usage
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