Where does “cyrwiyniaty” come from?

cyrwiyniaty (Polish) comes from Polish czerwień, from Polish Czerw, from Old Polish czyrw, from Proto-Slavic čьrvь, from Proto-Balto-Slavic kírmis, from Proto-Indo-European kʷŕ̥mis — worm.

Ancestry of “cyrwiyniaty”, step by step

StepLanguageWordMeaning
1Polishczerwieńred
2PolishCzerwlarva of certain hymenopterans, dipterans, and beetles, e.g. a maggot or woodworm
3Old Polishczyrwworm
4Proto-Slavicčьrvьworm, larva
5Proto-Balto-Slavickírmisworm
6Proto-Indo-Europeankʷŕ̥misworm
Every word from Proto-Indo-European kʷŕ̥mis →Every word from Proto-Balto-Slavic kírmis →Every word from Proto-Slavic čьrvь →