EN
The article discusses of acquiring borrowings in the Ukrainian dialect over the territory of river San, occurring on Polish territory. Examined dialect is classified to south-western team of Ukrainian dialects and because of location it possesses features of insular dialects - peripheral. Assimilation and linguistic interference are on the factors contributing to acquiring borrowings from Polish language. This process, at the present stage of functioning of the dialect, is increasing phenomenon. Full or partial adaptation of Polish borrowings constitutes a contemporary source of enrichment of dialect vocabulary. However, the uses of this dialect retain their national and religions identity, the characteristic feature of East Slavic-Ukrainian lingual area.