Where does “negryně” come from?

negryně (Czech) comes from Czech -yně, from Proto-Slavic -yni, from Proto-Slavic -ni — one.

Ancestry of “negryně”, step by step

StepLanguageWordMeaning
1Czech-yněA suffix
2Proto-Slavic-yniDenominal, forming feminine noun forms....
3Proto-Slavic-nione
Every word from Proto-Slavic -ni →Every word from Proto-Slavic -yni →Every word from Czech -yně →