A person tends to explain to himself the changes taking place around him. Sometimes he is sympathetic to the processes of renaming the names of streets, towns, even cities when changing the social structure of society. The reason is clear. But there are names of villages, villages, cities that live not only centuries, but even millennia. Where to look for the source of the name of the Oka, Volga rivers, the villages of Nosina, Ivanovka, Lotkazino?