The Abgarid dynasty was a dynasty of Nabataean Arab origin. Members of the dynasty, the Abgarids, reigned between 134 BC and AD 242 over the city of Edessa and the Kingdom of Osroene in Upper Mesopotamia. Some members of the dynasty bore Iranian names, while others had Arabic names, including Abgar itself. J.B. Segal notes that the names ending in "-u" are "undoubtedly Nabatean". The Abgarid dynasts spoke "a form of Aramaic".