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Classic usage
Reading level: medium
Estimated CEFR level: A2 — Elementary
Estimated from word frequency; not an official CEFR classification.
From Middle French effort, from Old French esfort, deverbal of esforcier (“to force, exert”), from Vulgar Latin *exfortiō, from Latin ex + fortis (“strong”). Compare typologically Bulgarian усилие (usilie), Czech úsilí, Polish wysiłek, Russian уси́лие (usílije) (< Proto-Slavic *sila).
attempt, endeavor, endeavour, try
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Classic usage
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