An Etymological Dictionary of the German Language/Annotated/Griebe
Griebe (Bavarian Greube), feminine, from the equivalent Middle High German griebe (Bavarian griube, Swiss grṻbe), Old High German griobo, griubo, masculine, ‘greaves’ (in Old High German also, ‘frying-pan’?); corresponding to Anglo-Saxon greófa, English greaves, Swedish grefwar; g in this word scarcely represents the prefix ga-, ge-, so that the word might be connected with the root of Old High German girouben, ‘to fry.’