Where does “kravka” come from?

kravka (Czech) comes from Czech kráva, from Old Czech kráva, from Proto-Slavic kòrva, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “kravka”, step by step

StepLanguageWordMeaning
1Czechkrávacow; bitch; big, large object
2Old Czechkrávacow
3Proto-Slavickòrvacow
4Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
5Proto-Indo-Europeankr̥-to turn, to bend
6Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →