The text pursues the boundaries and possibilities of automation of Czech derivational morphology (e.g. several types of nouns and adjectives derived from verbs). The aim of the presented text is to recapitulate the results of the formal description of Czech verb inflexion and regular derivation from verb form and to extend it on regular nominal derivation from verb stem and verb root (e.g. nouns and adjectives derived form verb). What we consider to be an essential benefit of our work is that we have designed and tested our formal description of word-formation through derivation linked with a set of morphological alternations at different levels. The systematic description of rules for Czech allomorph occurrence in a verbal morphlogy based on the analysis of a large machina redable dictionary of Czech stems served us as point of departure. The formal rules, published and tested in our work, could serve as point of departure forvarious NLP applications.