The etymology of the hydronym Pripyat and the problem of the Illyrian substratum in the Kiev Dnieper area

In the hydronym Pripyat , the first component of Pri- is usually considered a prefix. In this paper, the component Pri- is considered as the root. Hydronim * pri-peth is reconstructed from the Indo-European root *per-2 - “to go over” . The etymology of hydronym is associated with the Illyrian language. The name means “River flowing from the evening (western) side”. The penetration of the Illyrians to the Pripyat occurred during the Aeneolithic. Illyrian movement is associated with migrations to the east of the population of Globular amphora culture. Since the migratory population moved along the Pripyat, the river was called “flowing from the west”. Conclusions of the article are reasoned by archaeological data and mythological ideas about the sides of the world.