The word can be interesting not only in the text, but also as an independent entity with its own history, properties, meanings. Each meaning of a word is an element of a complex system of its many meanings. Each word is an element of an even more complex polyphonic structure of many related words, which are united by the harmonious unity of a common initial meaning. In general, this polyphony of the word is a reflection of the associativeness of human thinking, it reflects the linguistic picture of the world in which the creator of language lives. To study the word in this capacity, the Latin-Ukrainian dictionary of nesting structure is designed, where each word is presented with the closest etymology and surrounded by related words. Such a dictionary is also necessary when learning a language. Since the lexical system of any language is arranged in a nesting way, it is easier and more interesting to remember a word, understanding its origin and connections with related words. The Latin-Ukrainian Word-Forming Dictionary provides the reader with practical material for studying the phenomenon of the word in Latin for the study and teaching of Latin lexicology and word-formation. In addition, due to the genetic relationship of Latin with modern European, such a dictionary can be useful in working with English and all Romance languages. The Latin-Ukrainian Dictionary is not only a reference book in which you can find an unfamiliar word, but also a book to read, addressed to all who are interested in thinking about the word and the opinion it expresses.