Royal Sayauli (RSay. Rejiki) is an Indo-European language spoken in Kiton and was the lingua franca of the erstwhile Kingdom of Kiton. Adopted by the first Kitonese High King Harihara Jokhimgu (Nakacejurtin Ariyarei Jokhimguh), it was adopted as the language of the Tamtawei Dynasty and a common language among the various kingdoms of Kiton.
Royal Sayauli is an Indo-Iranian language which is a dialect of the Sanskrit language. When the Kitonese Islands became absorbed into the Greater Indian cultural sphere and the Kitonese tribal states began their transition into more structured and civilised unified kingdoms, more Indian gurukuls were set up teaching the Vedas and other Indian texts via Sanskrit. An interesting develop in Sanskrit occured in Kiton: for the first time, Sanskrit was not taught to just the noble classes, as there were no noble classes to begin with. The Kitonese civilization was still early into its transition into a fully-fledged class system, and thus Sanskrit was widely spoken in Kiton as a second language before the forming of the united kingdom. By the 12th century, when Jokhimgu of Sayaula became Maha Chakravartin in Kiton, this dialect was named Rejiki (royal) and declared the official language of Kiton to unify his vast empire.
After the fall of the Kitonese monarchy in 1935, the Kitonese State declared the Sayaulese language (the only living vernacular language, besides Alavite) the official Kitonese language, and the language known as Rejiki was renamed Royal Sayauli to reflect its phased out status.