Where does “nemoci” come from?

nemoci (Czech) comes 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 “nemoci”, step by step

nemoci traces back through two separate lines of ancestry.

via Czech ne

StepLanguageWordMeaning
1Czechneno!; not
2Old CzechneNegation particle; no, not
3Proto-Slavicnenot
4Proto-Balto-Slavicnēnot
5Proto-Indo-Europeannénot; no

via Czech moci

StepLanguageWordMeaning
1Czechmocican, be able to; may, be allowed to
2Old Czechmocican, be able to
3Proto-Slavicmoťito be able
4Proto-Indo-Europeanmeǵʰ-to be able
Every word from Proto-Indo-European né →Every word from Proto-Balto-Slavic nē →Every word from Proto-Slavic ne →