The objective of the present research is to reconstruct the system of juridical terms in the language of the 16th century Lithuanian legislation and to confront the textual realization of a pattern with the general social understanding of these particular terms at the beginning of the 17th century in the Great Duchy of Lithuania. The prototypes of categories of establishing interpersonal relationships (LAW, GUILT, COURT, AUTHORITY) as well as the prototypes of categories of the classification of a deed within interpersonal relations (LAW, DEBT, GUILT, HARM), researched in the context of a legislative act reflecting the awareness of legislators and the intellectual elite, are not adequate to the examples of the prototypes of categories certified by the Polish-Latin-Lithuanian dictionary according to the actual state of the common language. European juridical terms, taken on as a part of the Renaissance currents, were adopted to suit the local conditions of political and social life.Multilingualism of linguistic resources makes it considerably easier to identify the terms and to observe semantic reallocations of juridical terms in a given category.