The article examines the history of the following words found in diplomatic correspondence of Muscovite Russia of the 17th century: vstupan'e 'entry (into); come into smth. (administration, possession); accession to the throne', vygubiti 'kill; exterminate, extirpate; destroy', vyznan´e 'confession; confirmation, evidence', vymogati, vymoci 'extort (from)', vypucen´e 'release; liberation,', vysvobo?(d)en'e 'liberation; discharge', vysluchati 'listen (to)'. The author aims at proving that these intraslavonic derivates are interslavonic borrowings/loanwords in the written Russian language of the second half of the 16th and 17th centuries. The article contains facts proving these words to be Polonisms in the Russian language and “prostaja mova”, the latter, in the author's opinion, appeared to be the mediator when these words were being borrowed by the Russian language. The materials of the article considerably specify the chronology of vstupan´e, vymogati, vymoci, vypucen´e in the Russian written language and it is the first time the words vyznan´e, vysluchati have been discovered in the monuments of the Russian written language by the author of this investigation.