 In the East, the dialects of Palmyrene and Arsacid Aramaic merged with the regional languages to create languages with a foot in Imperial and a foot in regional Aramaic.The written form of Mandaic, the language of the Mandaean religion, was descended from the Arsacid chancery script.In the kingdom of Osroene, centred on Edessa and founded in 132 BCE, the regional dialect became the official language