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The article partially deals with the peculiarities of epidemiological discourse and the creation of secondary names (COVID neologisms), which have not been covered much before. In particular, socially significant innovative phenomena are described: the total transition of COVID-neologisms to an active commonly used lexicon, semantic and structural changes of epidemiological discourse through destructive influence on doctors and ordinary citizens. It was found that the main reason for the rapid dynamics and specified structural-semantic changes of epidemiological discourse and the creation in its environment of secondary names is a regular negative neuro pragmatic stimulation of protective mechanisms of the human psyche in complementary external (situational) conditions. The methods for elucidating these patterns were sociological observations of live drug speech; word-formation, semantic, pragmatic and comparative types of analysis and establishment of neuro pragmatic presupposition by extrapolation methods. The study was conducted on a limited sample of physicians of two specialties contrasted by neuro pragmatic parameters (epidemiologists and dentists). A total of 18 respondents. Therefore, the results of the study are framework, demonstrative and require extension in the mode of lexicographic and discursological expeditions, followed by the analysis of a sufficient number of linguistic phenomena. The international significance of the article lies in the fact that the authors have chosen the almost undiscovered problem of metamorphosis of epidemiological discourse at the intersection of linguistics and neuroscience, which encourages scientists to pay attention to the complex causes of the hypertrophic development and spread of epidemiological vocabulary and discourse in general.

The article shows that lexico-semantic innovations in the Ukrainian language system of proper names which are characterized by a specific neurophysiological mechanism of formation require in-depth study. The relevance of the article lies in the fact that lexico-semantic word formation used to be mainly considered in the diachronic aspect, which led to little attention to ergonyms and pragmonyms as relevant classes of proper names. The article aims to analyze lexico-semantic innovations in the context of ergonyms and pragmonyms and determine their role in word formation in the system of naming-related tools in the modern Ukrainian language. Research methods include observations, analogies, analysis, synthesis, linguistic description, component analysis, structural-semantic analysis, statistical methods. The article proves that lexico-semantic word formation is the most active and productive way of replenishing the fund of ergonyms and pragmonyms in the Ukrainian language under the conditions of a transition economy. The main types of lexico-semantic word formation are derivational metaphor and derivational metonymy. They enable the formation of both simple and compound lexico-semantic innovations mostly represented by binary word combinations. Including all layers of vocabulary in the scope of such a type of word formation can bring unlimited prospects of its functioning in the future. The international value of the research implies clarifying the role of lexico-semantic word formation in the naming system of modern Ukrainian, describing important fragments of the lexical structure of the Ukrainian language, systematizing modern lexico-semantic naming models, and determining the ways of activating lexico-semantic substitution. For the first time in Ukrainian linguistics, the research analyzes peripheral classes of proper names in various ways, classifies ergonyms by thematic groups and motivational features underlying the naming unit and reveals the specifics of different semantic groups of Ukrainian pragmonyms.

In the article the material of monumental texts of the Ukrainian language of the 16th – the first half of the 17th century (business documents, artistic, polemical, chronicle, scientific and confessional literature) and the studied monuments of the Old Belarusian language are studied the diachronic aspect of the use of case forms (generic or accusative) in negative verb constructions; their functioning in modern Ukrainian and Belarusian languages is analyzed. It has been revealed that in the monuments of the Ukrainian language of the specified period the accusative case in denial is inferior to the generic one. The use of certain syntactic models (parallel use of genitive and accusative forms in the pre- and postposition) was determined by the general style and place of writing the monuments. In studies of monuments of the Old Belarusian language in this position the genitive was fixed, and sometimes in negative constructions the accusative and the genitive were allowed at the same time. In the linguistics of the 20th – early 21st century philologists have repeatedly drawn attention to the peculiarities of the use of genitive and accusative cases in negative constructions both on the All-Slavic background and on the material of individual languages. Synchronously, it has been revealed that in the modern Ukrainian language the literary norm in negative constructions is the use of the genitive case instead of the accusative. However, there is no noticeable tendency to replace the accusative and the genitive in verbs with a negative participle not, as there are many cases of using the possessive case in literature and in everyday speech. On the other hand, there is no unanimity in the grammars of the modern Belarusian language on this issue: some scholars believe that both generic and possessive cases are possible in negative constructions, while others believe that only generic is possible. However, from a sample of analyzed works of Belarusian writers of the twentieth century, artistic and journalistic posts, as well as conversational style records, it can be argued that there are only a few cases of use of the accusative case, in particular in proverbs and sayings, and only the genitive is dominant in the negative constructions.

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