I was going through the sources for early indo-iranian and according to B. Fortson the first documented manifestation of this branch are the proper names in Mitanni Texts. Since the indo-iranian word are very scarce in this documents and, if I understood it correctly, treated as prestigious borrowings, I wonder what is the base language of official papers of Mitanni Empire. I assume that Hurrian was the basic vernacular since the Hurrians stood for the core of the Empire's population, but I can only guess the language of the goverment. On the basis of the time and location I would say Akkadian but it's only an assumption. Does anybody has some solid information on this topic ?
