Where does “korniak” come from?

korniak (Polish) comes from Polish kora, from Proto-Slavic kora, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “korniak”, step by step

StepLanguageWordMeaning
1Polishkorabark; crust; cortex
2Proto-Slavickorabark
3Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
4Proto-Indo-Europeankr̥-to turn, to bend
5Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →