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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English carken (“to be anxious, worry”, intransitive), from Old English *carcian ("to be sorrowful, worry"; found in becarcian (“to worry about, care for”)), a frequentative form of Old English carian (“to care”), equivalent to care + -k. The Middle English carken, also charken (“to load (sth.); to bear (crops); to burden, harass”, transitive), from Old Northern French carquier (“to load, burden”), from Latin carricāre (“to load”), related to Old French chargier (“to load”), is a different word often confused with the above.
perturb, unhinge, disquiet, trouble, distract, disorder
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Classic usage
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