Where does “Cervenka” come from?

Cervenka (English) comes from Czech červenka, from Czech červená, from Czech červený, from Old Czech črvený, from Proto-Slavic čьrvenъ, from Proto-Slavic čьrvь, from Proto-Balto-Slavic kírmis, from Proto-Indo-European kʷŕ̥mis — worm.

Ancestry of “Cervenka”, step by step

StepLanguageWordMeaning
1Czechčervenkarobin bird
2Czechčervenáinflection of červený: ## feminine...
3Czechčervenýred
4Old Czechčrvenýred
5Proto-Slavicčьrvenъred
6Proto-Slavicčьrvьworm, larva
7Proto-Balto-Slavickírmisworm
8Proto-Indo-Europeankʷŕ̥misworm
Every word from Proto-Indo-European kʷŕ̥mis →Every word from Proto-Balto-Slavic kírmis →Every word from Proto-Slavic čьrvь →