An Etymological Dictionary of the German Language/Grenze

by Friedrich Kluge

Grenze, f., ‘boundary, frontier, limit,’ from the equiv. late MidHG. gręniz, gręnize, f. (appeared in the 13th cent. in the district belonging to the Teutonic Order), which is again derived from Pol. and Russ. granica, Boh. hranice. The native word for Grenze is Warf.