(historical) That region of Germany lying to the east of the Elbe, comprising Brandenburg, Pomerania, Silesia and Prussia, marked by serfdom, political conservatism and Protestantism.

From, residing or located by, or pertaining to the Elbe.

(now chiefly historical) East of the river Elbe, as an area of German or Germanic activity; pertaining to the informal East Elbia region of the German Empire.