Names of micro-objects of the Middle Vychegda in the official documents of the XVII century

the article considers the names of micro-objects of the Middle Vychegda River basin, recorded in court documents of the XVII century. Official papers serve as material data bearers. They contain data on the life activity of a concrete society, people in a particular historical stage. The micro-names recorded in the texts are part of the lexical system of the Komi language of that period. They are formed according to the basic laws of the language and operate in accordance with historical rules and traditions. Their study is relevant, first of all, in differentiation of the dialect boundaries and, therefore, ethnic groups in the past. Objective: differentiation of micro-names, their linguistic, semantic and phonetic verification. Research materials: the empirical bases of the study are three court cases of the middle of the XVII century relating to the Middle-Eastern Vychegda Komi people. Results and novelty of the research: for the first time, the original lexemes extracted from written sources, reflecting the regional toponymy of the XVII century, are differentiated; a multi-aspect characterization of the lexical materials selected for analysis is carried out; new lexical data, that were previously not recorded in the local toponymical literature due to the functional specificity of micro-toponymical names, are introduced into scientific circulation; author’s etymological verifications are proposed, taking into account linguistic phenomena and regularities of different levels. The uniqueness of the collected material is a consequence of the border location: in the north, the region is adjacent to the territories of distribution of the Udora and Vym dialects of the Komi language; in the west – to the Northern Russian dialects of the Lensky District of the Arkhangelsk Oblast; in the southeast – to the Syktyvkar dialect of the Komi language. The results of the analysis show that the main feature of the adaptations should be considered the influence of the phonetics of the Northern Russian dialects. The letters that are not typical for the Russian language are transmitted by Russian sounds and combinations of sounds that are close to them in terms of articulation. But at the same time, the Komi phonetic system is characterized by a number of features that are reflected in Russian orthoepy and orthography. The research data can be used as a source of comparative data in the onomastic study of adjacent territories, as a base for creation of explanatory, etymological, and spelling dictionaries.