Keywords: contacts of languages, marginalia, substratum, euphemism, mongolism, etymology

Professor Vassili Abaev, a renowned linguist, published his «Historical-Etymological Dictionary of the Ossetic language» in four volumes (1958-1989). The Dictionary is most informative as an invaluable source of reference for scholars and students who are interested in Ossetic studies. The author of the article presents the marginalia on the Dictionary with addenda et emendanda. This article will be continued.