Heraldry (/ˈhɛrəldri/) is the profession, study, or art of creating, granting, and blazoning arms and ruling on questions of rank or protocol, as exercised by an officer of arms. Heraldry comes from Anglo-Norman herald, from the Germanic compound harja-waldaz, "army commander". The word, in its most general sense, encompasses all matters relating to the duties and responsibilities of officers of arms.