Blueish

Blueish is the language of the Blues, and was the lingua franca of the galaxy for generations until the rise of the Cosmic Federation, where it has found stiff competition from English and the languages of Xerxes. It is descended from Old Blueish, the language spoken in ancient times on Domus before its conquest into the First Cosmic Empire. It is from records of Old Blusish that all we know of the Dioseneian language comes from, as comparing old and new Blueish shows loan words hypothesized to come from Diosk, language of the Dioseneians.