(n.) One who regrates.

baker bookdealer bookseller butcher caterer clothing merchant commissariat commissary confectioner dealer distributor donor draper drysalter fishmonger fishwife florist footwear merchant fruiterer furnisher furrier greengrocer grocer groceryman haberdasher hardwareman importer ironmonger jeweler jobber liquor merchant manciple marketer merchandiser merchant middleman monger newsdealer patron perfumer poulterer provider provisioner purveyor quartermaster regrater retail dealer retail merchant retailer saddler shopkeeper stationer steward stock clerk storekeeper supplier sutler tobacconist trader tradesman tradeswoman trafficker victualer vintner vivandier wholesaler wine merchant