Where does “širmas” come from?

širmas (Proto-Balto-Slavic) comes from Proto-Indo-European ḱr̥-m-os, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “širmas”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanḱr̥-m-os—
2Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
3Proto-Indo-Europeankr̥-to turn, to bend
4Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →