Historical Foundations of Narrow Vowels in the Turkic (Kipchak) Languages

On the basis of comparative historical methods, the degree of proximity and common features of related Turkic languages are determined. The phonetic and phonological structures of the Kazakh and related Turkic languages belonging to the Kipchak group are studied in a diachronic aspect. The universal phonological phenomena of narrow vowel phonemes based on the laws of synharmonism and the agglutinative structure of the Turkic languages are described on the material of the Kazakh, Karakalpak, Tatar, Bashkir, Nogai, Karachay-Balkar languages of the Kipchak group. The aim of the study is to identify common and distinctive features of the phonetic and phonological structures of the Kazakh and related (Kipchak) Turkic languages through comparative historical methods. The system of vocalism of related Turkic languages is compared with each other, their similarities and differences are revealed, and as a result, the stages of the historical development of phonetic systems are established, the ways of the emergence and formation of phonemes are described. As a result of comparing the vocalism of the narrow (y, i, u, ü) vowels of the Turkic languages of the Kipchak group, common and distinctive features in the phonological systems of related languages are determined. The results obtained in the course of the study are of great theoretical and practical importance. The study of the languages of the Kipchak group, which make up a large branch of modern Turkic languages and languages of written monuments of the ancient Turkic era from the point of view of diachronic phonology, opens up great prospects in the study of general patterns in other areas of linguistics.