The subject of the Hunnic language is met with much controversy. So far, there is no general consensus on the exact origin or classification of Hunnic. A group of authors suppose that it may have been a member of, or related to, the Turkic language family.[39][40][41][42][43][44][45][46][47][48][49][50][51][52] Having said that, the literary sources of Priscus and Jordanes preserve only a few names, and three words, of the language of the Huns, which have been studied for more than a century and a half. The sources themselves do not give the meaning of any of the names, only of the three words. These words (medos, kamos, strava) do not seem to be Turkic,[15] but probably a satem Indo-European language similar to Slavic and Dacian.[53]