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c.1300, from Old French refuser "reject, disregard, avoid" (12c.), from Vulgar Latin *refusare, frequentative form from past participle stem of Latin refundere "pour back, give back" (see refund (v.)). Related: Refused; refusing.
mid-14c., "an outcast;" mid-14c., "a rejected thing, waste material, trash," from Old French refus "waste product, rubbish; refusal, denial, rejection," a back-formation from the past participle of refuser (see refuse (v.)). As an adjective from late 14c., "despised, rejected;" early 15c., "of low quality."