Where does “Ciernioch” come from?

Ciernioch (Polish) comes from Polish cierń, from Old Polish ciernie, from Proto-Slavic tьrnъ, from Proto-Balto-Slavic tirnas, from Proto-Indo-European tr̥nós, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

Ancestry of “Ciernioch”, step by step

Ciernioch traces back through two separate lines of ancestry.

via Polish cierń

StepLanguageWordMeaning
1Polishcierńthorn
2Old Polishcierniethornbush, bramble
3Proto-Slavictьrnъthorn; blackthorn, sloe-tree
4Proto-Balto-Slavictirnasthorn
5Proto-Indo-Europeantr̥nóssharp, stiff
6Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...

via Proto-Slavic čьrnъ

StepLanguageWordMeaning
1Proto-Slavicčьrnъblack
2Proto-Balto-Slavickiršnasblack
3Proto-Indo-Europeankr̥snósblack; dark, dusky
4Proto-Indo-Europeankers-black, dirty; run; to run
Every word from Proto-Indo-European (s)ter- →Every word from Proto-Indo-European tr̥nós →Every word from Proto-Balto-Slavic tirnas →