The article highlights the behavior of verbal stress in prefixed and prefixed and suffixed nouns as well as dynamic processes in establishing their accent type. The paper presents the results of a comparative analysis of stress in prefixed and prefixed and suffixed nouns with noun prefixes (u, pа, рrа, su) and with originally long verb and noun prefixes (vy, nа, nаd, roz, pere), presented in «Словарь української мови» in 4 volumes, ed. by B. Hrinchenko (1907–1909), «Малоруско-нїмецкий словар» by E. Zhelekhivsky and S. Nedilsky (1886), and the dictionary reference book «Ukrainian literary pronunciation and emphasis», ed. by M. Zhovtobryukh (1973). The comparative analysis of these lexicographical works revealed that the nouns under study are functioning with a prefixal, root accent type, and at the present stage they have not changed their stress; there are differences in stress, which indicate the existence of different regional traditions in the Ukrainian accent system. The analysis also helped to understand which of the regional options scholars preferred when codifying the stress in the nouns under study. At the same time, it is noted that the prefixal stress in nouns was ancient and primary, and the tendency to shift the stress from the prefix to the root developed in the Ukrainian language, since there is a large number of nouns with prefixal stress recorded in Ukrainian accentuated manuscripts from the late 16th — early 18th centuries.
Verbal stress and heart-rate in humans exposed in groups