Elamite language
The Elamite language may have survived as late as the early Islamic period (roughly contemporary with the early medieval period in Europe). Among other Islamic medieval historians, Ibn al-Nadim, for instance, wrote that "The Iranian languages are Fahlavi (Pahlavi), Dari (not to be confused with Dari Persian in modern Afghanistan), Khuzi, Persian and Suryani (Assyrian)", and Ibn Moqaffa noted that "Khuzi" was the unofficial language of the royalty of Persia, "Khuz" being the corrupted name for Elam.