Etimoloji
Etymology tree Proto-Indo-European *né Proto-Balto-Slavic *ne Proto-Slavic *ne Old Polish nie Old Polish nie- Polish nie- Proto-Slavic *bolestь Old Polish boleść Polish boleść Proto-Indo-European *-nós Proto-Balto-Slavic *-inas Proto-Slavic *-ьnъ Old Polish -ny Polish -ny Polish bolesny Polish niebolesny From nie- (“non-”) + bolesny (“painful”).