On the problems of historical word formation of Mongolian nouns

The article is devoted to the consideration of some problems of the word formation of the Mongolian languages. The relevance of the topic is related to the need to develop the most important principles in creating a historical dictionary of the Mongolian languages. It is recognized that it is necessary to determine the historical roots and suffixes of nouns in the Buryat, Kalmyk, and Khalkha-Mongolian languages. It requires clarification of the origin of suffixes that may be foreign-language, identifying synonymous or homonymous suffixes. Semantic characteristics of the root of the word form are required due to possible cases of homonymy. The lexical material should be selected from modern dictionaries and Buryat, Kalmyk and Khalkha-Mongolian old-written monuments. The material clearly demonstrates the phonetic differences of modern Mongolian languages, such as the fullness of Buryat and old Mongolian languages, the phenomenon of reduction in Kalmyk and Khalkha-Mongolian languages. A preliminary study of the word-forming means of Mongolian languages shows the productivity and unproductivity of suffixes, which should also be noted in dictionary entries. An interesting variant is thematic dictionary from the point of view of linguoculturology.