roggo m
From Proto-Germanic *rugiz, whence also Old English ryġe (English rye), Old Frisian rogga (West Frisian rogge), Dutch rogge, Old High German rocko (German Roggen, Rocken), Old Norse rugr (Danish and Norwegian rug, Swedish råg). Ultimately from Proto-Indo-European *wrugʰyo- (compare Russian рожь (rožʹ) and Old Prussian rugis).