In this work the comparative analysis of morphological peculiarities of Turkish, Kurdish and Talysh appellative forms expressed by own names are performed. This work attempts to establish and describe appellatives as an independent category. For the first time the concepts of "vocative", "vocative", "appellative", "appeal" are applied to the proper names in the three above-named languages. An analysis of new affixes of the Turkish language is carried out through the prism of the theory of substrata borrowings, presumably, from the Kurdish language. The category of the mentioned case, which is absent in the Turkish language, is defined as a neoplasm and is analyzed in comparison with the similar phenomenon in the Kurdish and Talysh languages, the ways of its expression, morphological similarities and differences in education are also described. The paper will consider the form of proper names, which fulfill the function of an appellative, to reveal a number of features that are not fixed in the grammars of the three languages. The collected material and the results of the morphological analysis can be used in the preparation of textbooks on these languages and in the practice of ethnolinguistic research.