DERIVATION OF THE FULL FORMS OF CHRISTIAN PERSONAL NAMES IN THE PRE-NATIONAL PERIOD (BASED ON THE TVER BUSINESS MANUSCRIPTS OF THE XVITH–XVIIITH CENTURIES)
The article analyzes derivation of the regional form system of Christian personal names in the pre-national period. With reference to the anthroponyms recorded in the Tver business documents of the 16th–17th centuries, the author focuses on the ways of structural changes of the full forms of male Christian personal names in everyday communication.