Abstract
The main objective of the study is to analyse and describe the structural organization and semantic and cognitive properties of new peripheral wordformation types of nomina actionis in the modern Russian and Polish languages. As resistant forms and organizing principles of the thinking process, the derivational categories of nomina actionis derivatives reproduce the properties and relations of being and knowledge in the most concentrated form. It increases the need for a comprehensive study of their structure and semantics. The article analyses the main approaches to the differentiation of the peripheral types of wordformation categories according to the nature of derivational semantics. The author justifies the nominative rendering of transposition and proves that it can contribute to distinguish a mixed type of wordformation categories.