Where does “niemrawiaty” come from?

niemrawiaty (Polish) comes from Polish niemrawy, from Czech nemravný, from Czech ne, from Old Czech ne, from Proto-Slavic ne, from Proto-Balto-Slavic nē, from Proto-Indo-European né — not; no.

Ancestry of “niemrawiaty”, step by step

StepLanguageWordMeaning
1Polishniemrawysluggish, slow, lethargic
2Czechnemravnýdissolute, immoral, indecent
3Czechneno!; not
4Old CzechneNegation particle; no, not
5Proto-Slavicnenot
6Proto-Balto-Slavicnot
7Proto-Indo-Europeannot; no
Every word from Proto-Indo-European