Where does “чистка” come from?

чистка (Bulgarian) comes from Russian чи́стка, from Russian чи́стить, from Proto-Slavic čistiti, from Proto-Slavic čistъ, from Proto-Balto-Slavic skīstas, from Proto-Indo-European skidtos, from Proto-Indo-European (s)keyd-.

чистка (Bulgarian): political purge

Definitions

  1. political purge

Ancestry of “чистка”, step by step

StepLanguageWordMeaning
1Russianчи́сткаcleaning, purge
2Russianчи́ститьto clean, to scour
3Proto-Slavicčistitito clean, purify
4Proto-Slavicčistъclean, pure
5Proto-Balto-Slavicskīstas—
6Proto-Indo-Europeanskidtossplit
7Proto-Indo-European(s)keyd-—
Every word from Proto-Indo-European (s)keyd- →Every word from Proto-Indo-European skidtos →Every word from Proto-Balto-Slavic skīstas →