“ CROP (a word common in various forms, such as Germ. Kropf, to many Teutonic languages for a swelling, excrescence, round head or top of anything; it appears also in Romanic languages derived from Teutonic, in Fr. as croupe, whence the English “crupper”; and in Ital. groppo, whence English “group”) , the ingluvies, or pouched expansion of a bird’s oesophagus, in which the food remains to undergo a preparatory process of digestion before being passed into the true stomach. ”