Where does “černobílý” come from?

černobílý (Czech) comes from Czech Černý, from Old Czech črný, from Proto-Slavic čьrnъ, from Proto-Balto-Slavic kiršnas, from Proto-Indo-European kr̥snós, from Proto-Indo-European kers- — black, dirty; run; to run.

černobílý (Czech): black-and-white, black and white

Definitions

  1. black-and-white, black and white

Ancestry of “černobílý”, step by step

černobílý traces back through two separate lines of ancestry.

via Czech Černý

StepLanguageWordMeaning
1CzechČernýblack
2Old Czechčrnýblack
3Proto-Slavicčьrnъblack
4Proto-Balto-Slavickiršnasblack
5Proto-Indo-Europeankr̥snósblack; dark, dusky
6Proto-Indo-Europeankers-black, dirty; run; to run

via Czech bílý

StepLanguageWordMeaning
1Czechbílýwhite
2Slovakbielywhite
3Proto-Slavicbělъwhite
4Proto-Indo-EuropeanbʰēlHswhite surface or stain
Every word from Proto-Indo-European kers- →Every word from Proto-Indo-European kr̥snós →Every word from Proto-Balto-Slavic kiršnas →