“ GROCER, literally one who sells by the gross, a wholesale dealer; the word is derived through the O. Fr. form, grossia, from the Med. Lat. grossarius, defined by du Cange, Glossarium, s.v. Grossares, as solidae mercis propola. The name, as a general one for dealers by wholesale, “engrossers” as opposed to “regrators,” the retail dealers, is found with the commodity attached ”