Etymology

From Proto-Germanic *rugiz, whence also Old English ryġe (English rye), Old Frisian rogga (West Frisian rogge), Old Saxon roggo (Low German Rogg), Dutch rogge, Old High German rocko (German Roggen, Rocken). Ultimately from Proto-Indo-European *wrugʰyo- (compare Russian рожь ‎(rožʹ) and Old Prussian rugis).