Save Type Surname (from nickname) Usage German Meaning & History From a nickname for a red-haired person, from Middle High German rost meaning ‘rust’.
Save Type Surname (from occupation) Usage German Meaning & History A metonymic occupational name for a limeburner or blacksmith, from Middle High German, Middle Low German rōst meaning ‘grate, grill’ or Middle High German rōst(e) meaning ‘fire, embers, pyre, grate’ (typically one for burning lime).