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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English jumbelen, alteration of jumbren, jombren, a variant of jumpren, frequentative of jumpen (“to jump”), equal to jump + -le. More at jumber, jump, jumper.
clutter, muddle, fuddle, mare's nest, welter, smother
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Classic usage
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