Where does “Ciornei” come from?

Ciornei (Romanian) comes from Ukrainian чо́рний, from Proto-Slavic čьrnъ, from Proto-Balto-Slavic kiršnas, from Proto-Indo-European kr̥snós, from Proto-Indo-European kers- — black, dirty; run; to run.

Ancestry of “Ciornei”, step by step

StepLanguageWordMeaning
1Ukrainianчо́рнийblack color
2Proto-Slavicčьrnъblack
3Proto-Balto-Slavickiršnasblack
4Proto-Indo-Europeankr̥snósblack; dark, dusky
5Proto-Indo-Europeankers-black, dirty; run; to run
Every word from Proto-Indo-European kers- →Every word from Proto-Indo-European kr̥snós →Every word from Proto-Balto-Slavic kiršnas →