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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Inherited from Middle English festre, festur, borrowed from Old French festre (cognate with Italian fistola, Occitan fistola, Spanish fístula), from Latin fistula. The verb is derived from the noun, while the “condition of something that festers” noun sense is derived from the verb. Doublet of fistula.
suppurating sore
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Classic usage
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