(Arabic), a title of dignity among the Turks. It signifies lord or chief, and was first given to the khalifis; but when they assumed the title of Sultan the title of Emir was given to their children, as that of Caesar among the Romans. The title of Emir is now given, by prescriptive usage, to all who are considered to be descended from Mohammed by his daughter Fatima, and who consequently wear the green turban instead of the white. As prefixed to another word indicative of a particular command or office, it is a common title of dignity, and is borne by viziers, pachas, &c.