The article provides a thorough account on A. A. Potebnia’s views on the systemic nature of the language presented in his works on historical phonetics of the Eastern Slavic languages. The practical implementation of his ideas in this respect is studied. The comprehension of the systemic character of phonetic changes of the Khrakiv linguistic school representative has urged the search of their interrelations as well as the attempt to identify homogeneous phonetic laws that share a common cause and act in a certain period of the language history, which is emphasized by the author of the article.
It is noted that A. A. Potebnia focused on consonant changes that took place in different conditions. The causes of phonetic laws mentioned in the article can not be reduced to the interaction of sounds in a speech stream, the material provided by A. A. Potebnia proves that they are to be found within the phonetic system itself. The author of the article shares the views of V. A. Glushchenko that Potebnia’s investigations embrace all phonetic laws in the history of the Eastern Slavic languages’ consonant systems.
The relevance of Potebnia’s research on the systemic nature of the language that has retained their value for the linguistics of the XX — beginning of XXI century is identified.
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