Топонимическое наследие академика О. Н. Трубачёва. (К 90-летию со дня рождения)

The article considers the main stages of the scientific activity of academician O. N. Trubachev and analyses the most important works from his vast toponymic heritage. The methods used by the scholar to reconstruct the oldest layers of toponymic vocabulary from different regions and establish reliable etymologies are described. The significance of O. N. Trubachev’s works for the development of the theory and practice of modern toponymy and the popularization of toponymic knowledge is shown. The peculiarities of the author’s presentation style are noted.