Where does “Kurpiowszczyzna” come from?

Kurpiowszczyzna (Polish) comes from Polish kurpiowski, from Polish -owski, from Polish -ski, from Old Polish -ski, from Proto-Slavic -ьskъ, from Proto-Indo-European -iskos — Characteristic of, typical of, pertaining to.

Ancestry of “Kurpiowszczyzna”, step by step

StepLanguageWordMeaning
1PolishkurpiowskiKurpie, Kurpian
2Polish-owskiForms possessive surnames from given names
3Polish-skiforms surnames; forms adjectives
4Old Polish-skiforms adjectives
5Proto-Slavic-ьskъ-ic, -ish
6Proto-Indo-European-iskosCharacteristic of, typical of, pertaining to
Every word from Proto-Indo-European -iskos →Every word from Polish -ski →Every word from Polish -owski →