Where does “Niestój” come from?

Niestój (Polish) comes from Polish nie-, from Old Polish nie-, from Old Polish nie, from Proto-Slavic ne, from Proto-Balto-Slavic nē, from Proto-Indo-European né — not; no.

Ancestry of “Niestój”, step by step

StepLanguageWordMeaning
1Polishnie-un-, dis-, -less, non-
2Old Polishnie-generic negation prefix, used for adjectives, adverbs and participles; un-, dis-, -less, non
3Old Polishnienegation particle; no, not
4Proto-Slavicnenot
5Proto-Balto-Slavicnēnot
6Proto-Indo-Europeannénot; no
Every word from Proto-Indo-European né →Every word from Polish nie- →Every word from Proto-Balto-Slavic nē →