EN
The aim of this paper is to discuss the etymological research conducted by Krystyna Długosz-Kurczabowa, in particular her dictionary: Wielki słownik etymologiczno-historyczny języka polskiego (Great etymological and historical dictionary of Polish), published in 2008. The paper presents the methodological premises behind the dictionary, its editing solutions, the number of entries and words discussed. The types of relations between the words, which are demonstrated in the dictionary, are presented on selected examples.