Evolution of the oikonymic system of lake Syamozero territory

The article reconstructs the chain of changes in the development of oikonyms in the territory of Lake Syamozero, reflected in the written sources over the second half of the second millennium AD. The author studied historical documents dating back between the XVI and the XX centuries to observe the dynamics of the oikonymic system. Three oikonymic models with common anthroponymic origins were analyzed: oikonyms with the formant -//-/u, oikonyms that include the structural component se/gy meaning ‘mountain’ or ‘hill’, and oikonyms that are identical to anthropo-nyms. The relevance of the study was to identify a certain chronological distribution in these models. It was also proved that there are two levels of nomination - an official and an unofficial one. The article demonstrates that two names of the same settlement can exist simultaneously: one can appear in the documents of the past centuries, while another can be used in oral practice. It also traces the etymology of names originating from calendar and non-calendar names.