Basic Guidelines For English Spellings
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Poulterer. Now chiefly in "Poulters' Company": the name of a livery company of the City of London.
Late Middle English. From Anglo-Norman poleter, poletier, pulter, pultere, pulleter, pulletere, pulletier and Old French, Middle French pouletier, Middle French poletier, poulletier from polet, poulet, poullet, pulet, pullet + -er, -ier.