“…A peculiar set of rules drawn up and written in the Ukrainian language by famous historian, linguist, public figure I. Ogienko is called "the Science of obligations to native language, the catechism in the native language for teachers, writers, clergy, lawyers, students and the general society" (Shirin, S.S., 2015). About the work of I. Ogienko in the Ukrainian scientific field began to write in the years of 2000-2009(Belaya, E.M., 2000and Belaya, E.M., 2001).…”