LTReikšminiai žodžiai: Skoliniai; Kalbų kontaktai; Substratas; Uralo kalbos; Jotvingių kalba; Borrowings; Language contact; Substrate; Uralic languages; Yatvingian.
ENTis paper considers 15 Yatvingian words suspected of being borrowed from a Finno-Ugric source. Te hypothesis is rejected in the case of five lexical units, while two further proposals are considered uncertain. Te following words are verified as Finno-Ugricisms: Yatv. aiga ‘end’ (← Balto-Finnic *akja ‘id.’); Yatv. ajki ‘time’ (← BF. *ajka ‘id.’); Yatv. fała ‘meat’ (← FU. *pala ‘bite; to eat’); Yatv. ławe ‘boat’ (← FU. *lajwa ‘boat, canoe’); Yatv. sini pl. ‘mushrooms’ (← BF. *sēne ‘mushroom’