EN
From a long time ago researches have been done in the historical linguistic and dialectology and they will always remain as a part and meaning of national identification, especially in time when the searching for national identity has got a support in the natural, uncontrolled language development and when it respects a past experience. Semantic analysis of vocabulary in dialects of particular Slavonic languages after a complex area elaboration - for instance in the Slavic Linguistic Atlas project - gives a testimony to differentiation as well as integration features of examined items with surrounding language environment. On several illustrative examples, such as 'dedina' (village), 'strom' (tree), 'hora' (forest), the author points out the constants that are permanent identifying features of Slovak language and that, in course of natural development from a supra-dialect sphere in the pre-standard period, have become constituent parts of the contemporary standard Slovak language.