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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Origin unknown; possibly a variant of frowsy (frousy, frouzy, frowzy), etymology also unknown; and possibly related to Old French frouste (“decayed, in a state of ruin”). Compare also froughy, frow.
fusty, musty
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Classic usage
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