The comparative analysis of the manuscript sources allows us to outline the general path of development of manuscript number 3917 kept in the Matenadaran after M. Mashtots; it contains the “Interpretation of Grammar” by Grigor Magistros (990–1058) and presents the scientific and educational environment in which this grammatical work was spread. As a result of the research, it becomes clear, that the “Interpretation” by Magistros was used in Tatev and Sarkavagants Monasteries. In the 15th century, when the interpretations of Hovhannes Yerznkatsi, Hovhannes Tsortsoretsi, and Vardan Areveltsi were created, Grigor Tatevatsi handed over the original of the “Grammar” by Magistros to his student Archimandrite Hovhannes Karmir from Kapan to circulate in the Sarkavagants Monastery.

KeywordsGrigor Magistros “Interpretation of Grammar” manuscript colophon Grigor Tatevatsi Archimandrite Hovhannes Tatev Monastery Deacon Monastery library writing center.

The focus of the founder of the Mkhitarist Congregation, Mkhitar Sebastatsi (1676–1749) and his disciples was the Armenian language, and it was exactly in this field of study that they achieved unprecedented success. It is well known that both prominent Armenologists of the time and Sebastatsi himself were primarily interested in Grabar (Classical Armenian), whereas Ashkharhabar (Modern Armenian) remained largely outside the scope of their attention. Nevertheless, Sebastatsi authored the first grammar of the emerging Western Armenian language, in which he advocated for its purification and standardization, simultaneously calling for the elimination of Latinisms from Grabar.

Keywords Mkhitar Sebastatsi Mkhitarist Congregation Grabar Ashkharhabar dictionary lexicography Western Armenian grammar abbot Catholics.

The numerous scientific works by Hrachya Acharyan (1876-1953) cover all domains of the study of the Armenian language. He is the founder of such scientific disciplines as the history of the Armenian language, Armenian dialectology, and experimental phonetics of Armenian language. Hr. Acharyan’s monumental contributions to Armenian lexicography, etymology of the Armenian language, the study of Armenian personal names, historical and comparative grammar of the Armenian language, typological and contrastive research, and many other fields are of fundamental importance to Armenian studies. The pedagogical legacy of the eminent Armenologist is immense.

Keywordsdialect history of language general linguistics dictionary Meillet Hübschmann anthroponym Indo-European languages complete grammar.