The given article touches upon one of the most productive model of word-formation in a proto-Slavic language - the derivatives with the formal element -(d)lo in the diachronic-comparative aspect. Basing on the data from different historic and modern dictionaries the author studies the semantics, the level of invariance, the derivational activity of the lexemes with -(d)lo in such languages as Proto-Slavic, Old Russian, Modern Russian, Czech, and Slovak. The undertaken study enables to draw some conclusions on the reasons of the loss of the productivity of the given derivational model in the Russian language and its high level of activity in the Czech and Slovak languages. This can be explained not only with different modes of display of their puristic tendencies, but also with their specific national cognitive dominants.

Slavonic languages, the diachronic-comparative aspect, national specificity, cognitive dominants, derivational model, derivational productivity

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