The question about the origin and the ethnical belonging of famous Trypilla (Tripolje) culture is debatable up to this time. This Chalcolithic (Eneolithic) culture existed on the area of Right-bank Ukraine and Moldova during III-II mill. B.C. just then as Turkic tribes settled the steppes to east of the Dnepr. Studying the contacts between Indo-European and Turkic languages we supposed that occasionelly the mediator of these contacts could be the language of the population of Trypilla culture which was of the much higher level.