Where does “чистокровный” come from?

чистокровный (Russian) comes from Russian кровь, from Old East Slavic крꙑ, from Proto-Slavic kry, from Proto-Balto-Slavic krū́ˀs, from Proto-Indo-European kréwh₂s, from Proto-Indo-European krewh₂- — blood outside the body.

чистокровный (Russian): pureblooded; thoroughbred

Definitions

  1. pureblooded; thoroughbred

Ancestry of “чистокровный”, step by step

чистокровный traces back through two separate lines of ancestry.

via Russian кровь

StepLanguageWordMeaning
1Russianкровьblood
2Old East Slavicкрꙑblood
3Proto-Slavickryblood
4Proto-Balto-Slavickrū́ˀsblood
5Proto-Indo-Europeankréwh₂sblood
6Proto-Indo-Europeankrewh₂-blood outside the body

via Russian чи́стый

StepLanguageWordMeaning
1Russianчи́стыйclean
2Old East Slavicчистъpure; clean
3Proto-Slavicčistъclean, pure
4Proto-Balto-Slavicskīstas—
5Proto-Indo-Europeanskidtossplit
6Proto-Indo-European(s)keyd-—
Every word from Proto-Indo-European krewh₂- →Every word from Proto-Indo-European kréwh₂s →Every word from Proto-Balto-Slavic krū́ˀs →