The present article examines the problem of the role and place of the major historical process called the Great Migration of Peoples, which took place in Europe in the 2nd-10th centuries, in the formation of the Hungarian language. The problem is very relevant and interesting due to the fact that, being on the territory of Eastern Europe, the Hungarian people created a state in the very heart of Western Europe, forming the so-called “language island” in the center of a huge territory inhabited by Indo-European peoples. The author analyzes this problem using the etymology of Hungarian words and comparing them with the material of ancient Turkic languages.