A comparison of the vocabulary of Old Uygur and New Uygur in terms of nouns

Examining the words seen in various historical periods of the Turkic language and in contemporary Turkic languages in terms of phonetics, morphology and semantics is of great importance in revealing and preserving the integrity of Turkish, which has reached the present day despite historical or geographical changes. In these studies, the origin of the words in Contemporary Turkic languages has been tried to be determined, and it is aimed to have an idea about how much the Old Uyghur vocabulary is a source for contemporary Turkic languages. In this case, the main purpose of the thesis will be to determine the similarities and differences of the Old Uyghur vocabulary with the New Uyghur in terms of noun. One of the main purposes of the study is to reveal the common elements in New Uyghur and Old Uyghur. The subject of this study is to compare the noun-origin vocabulary in Old Uyghur in terms of noun-origin words in New Uyghur, to compare the names in Old Uyghurin terms of phonetics, morphology and semantics, to reveal the similarities and differences, and to reveal the schema of the change between these two historical periods. Keywords: Old Uyghur Language, New Uyghur Language, Vocabulary, Changes, Similarity.