Категорія часу у світобаченні середньовічної людини: вплив мовної картини світу на морфологію дієслова

The article intendsto examine the features of a medieval linguistic worldview that affected the becoming of morphological system of verb tenses. The methodsof observation, comparison and analysis are used in the research. Its noveltyis in clarification of how exactly the category of verb tense is formed starting from Proto-Indo-European language to Old Ukrainian one, but also how it relates to anancient and medieval human’s outlook. We observe gradual development of verb categories in old languages alongside development of ancient and medieval concepts of time as a phenomenon. We also note immediate connection between these two interdependent processes. Thearticle’s final partprovides a short essay on further evolution of verb category of tense and its simplification in modern Slavic languages