Wyraz pluszczyć ‘zamykać, mrużyć oczy’ w języku polskim, ukraińskim i białoruskim

The article aims to determine the status and origin of the verb pluszczyć in three Slavic languages. The analysis of linguistic data has shown that, in terms of diachronic perspective, the unit under scrutiny is a semantic innovation that is common to Belarusian, Ukrainian and Polish (the Mazovian dialect), but has a slightly different character in each of these languages. While in Belarusian pluszczyć belongs to the lexical inventory of literary language, in Ukrainian it appears rather occassionally, but in Polish it is a regionalism (Podlasie) that can be synchronically considered as a loanword adopted from Belarusian.