The article analyzes the state of lexicographic modeling of modern Slavic morphemics, primarily the Ukrainian language. The development of Ukrainian morphemography over the past 40 years has been traced. Particular attention is paid to the computer morpheme and word‑formative fund of the Ukrainian language, which was created and is being developed by researchers of the Institute of the Ukrainian Language of the National Academy of Sciences of Ukraine in Kyiv. Common parameters of the form and semantics of roots and affixes are highlighted, which can become a basis for comparative studies. It is noted that, in contrast to Ukrainian morphemology, the morphemic dictionaries of other Slavic languages rarely present complex morphemic units: pairs and chains of affixal morphemes, affixal surroundings (lattices) of roots, models of the morphemic structure of words and morphemic nets for constructing words of certain parts of speech. The need to create a common factual basis, a common theoretical and methodological foundation for carrying out comparative studies on morphemics is emphasized. Only under this condition can we expect reliable conclusions about the typology and characterology of Slavic morphemics in general and morphemics of a certain Slavic language in particular. Keywords: morphemics,

The author considers problems of the book by Krystyna Waszakowa on the cognitive and communicative aspects of the study of modern Polish word-‑formation. The researcher focuses her attention on the possibility of using the cognitive semantics model of Ronald Langacker and the cognitive‑discourse model of Elena Kubryakova for the analysis of mechanisms of forming the semantics of word‑formation derivatives. Perspectives of the cognitive-‑communicative approach to the study of modern Polish word‑formation derivation Krystyna Waszakowa discusses in connection with the achievements of Slavic descriptive and structural derivatology.