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Classic usage
Reading level: medium
Estimated CEFR level: A2 — Elementary
Estimated from word frequency; not an official CEFR classification.
Verb is from Middle English troublen, trouble, borrowed from Old French troubler, trobler, trubler, metathetic variants of tourbler, torbler, turbler, from Vulgar Latin *turbulō, from Latin turbula (“disorderly group, a little crowd or people”), diminutive of turba (“stir; crowd”). The noun is from Middle English trouble, troble, from Old French troble, from the verb.
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Classic usage
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