Where does “Краснопілля” come from?

Краснопілля (Ukrainian) comes from Ukrainian кра́сний, from Proto-Slavic krasьnъ, from Proto-Slavic krasa, from Proto-Indo-European kreH- — to shout.

Ancestry of “Краснопілля”, step by step

Краснопілля traces back through two separate lines of ancestry.

via Ukrainian кра́сний

StepLanguageWordMeaning
1Ukrainianкра́снийbeautiful
2Proto-Slavickrasьnъbeautiful
3Proto-Slavickrasabeauty
4Proto-Indo-EuropeankreH-to shout

via Ukrainian поле

StepLanguageWordMeaning
1Ukrainianполеfield
2Proto-Slavicpoľefield
3Proto-Indo-Europeanpleh₂-flat
Every word from Proto-Indo-European kreH- →Every word from Proto-Slavic krasa →Every word from Proto-Slavic krasьnъ →