Matrix reconstruction as a method of ecolinguistics monitoring

The article presents the results of ecolinguistic monitoring on the language of the region at one of its stages. The method of matrix reconstruction, aimed at the analysis of the derivatives with the root morpheme sestr and their representation in the dialectal speech of various social groups, justifies for some expansion of the terminology series names for female relatives at the expense of other lexemes contrary to the general tendency of this semantic-derivational oppositions decay.