The dissertation analyzes the historical and methodological foundations of Ukrainian linguistic terminology in the context of the grammars of the end of the XIX – first half of the XX centuries. The linguistic terminology of the Ukrainian language was formed from the end of the XVI century to the beginning of the XX century, it is improved now. Observation of this process generally makes it possible to determine V. Simovych’s role in this process. The scientist kept the terms developed by tradition and contributed to their formation. The main works which appeared before the appearance of V. Simovych’s grammars are identified, the attention is paid to the linguistic terms of these grammars. The study is named of linguistic terminology in the qualification works of Ukrainian scientists, analyzed the figure of V. Simovych in the context of his age, namely: a general characteristic of the works of the period of the end of the XIX – beginning of the XX century of the grammatical direction is given, the Ukrainian grammars of that time, which preceded the works of V. Simovych, and two of his grammars (1918, 1921) are considered, the linguistic terms used in the Practical Grammar of the Ukrainian Language (Rashtat, 1918) and the Grammar of the Ukrainian Language for self-study and for the aid of school science ”(Leipzig, 1921) by V. Simovych were collected and elaborated, including phonetic, morphological and syntactic terms (partially punctuation, morphemic), tracing the way of their formation and normalization. Terms are found: which are specific only to V. Simovych (роззїв, стягнення, приставне «і», дїєслова заіменикові або загальні, дальший предмет), which differ in the notation of the same concepts in different editions of V. Simovych’s grammars (губні шелестівки притиснені – губні протиснені шелестівки, теперішність – теперішнїй час, будучність – будучий час або прийдешний час), which have entered the modern linguistic terminology system unchanged (наголошений склад, відміна, особові іменики, збірні іменики, присудкові речення), as well as partially modified (відчинений склад – склад одчинений, виклики – вигуки, приказові речення – наказові речення). The structure and some peculiarities of the term creation in V. Simovych grammars are examined in detail, and the idiosyncrasies of his style books are revealed. Comparative tables of linguistic terms (Appendix Б, Appendix B, Appendix Г) have been drawn up which are based on the analyzed works of V. Simovych and grammars of the end of the XIX – the first half of the XX century.
