Grau Family History
Grau Name Meaning
German and Jewish (Ashkenazic): nickname for someone with gray hair or a gray beard from German grau ‘gray’. This surname is also found in France (Alsace and Lorraine). Catalan and southern French: from a shortened form of the medieval personal name Guerau a cognate of Gerald . Catalan and southern French: topographic name for someone who lived near a canal giving access to the sea from Catalan and Occitan grau ‘step’ (from Latin gradus). French: habitational name from Le Grau-du Roi (Gard) or Le Grau d'Agde (Hérault) places called with grau ‘step’ (see 3 above).
Source: Dictionary of American Family Names 2nd edition, 2022