The article is devoted to the comparative analysis of the suffixally transmitted distinctions of
forms – designations of relationship in lexical-semantic, usual and expressive aspects. These
distinctions are capable to lexicalisation, embodying, on the one hand, the semantics of categories
determining the complexes of ideas of relationship, and with another, semantics od suffixes, only
at a superficial level perceived as parameters of a subjective estimation. Both was shown on an
example of correlarion of 0 / -к- / -ушк- for some words from the group of relationship. The
further analysis, with definition of the specified categories and probable meanings of formants,
assumes of more detailed deepening in a material and wide using of the comparative data.