Where does “кровавить” come from?
кровавить (Russian) comes from Russian крова́вый, from Proto-Slavic krъvavъ, from Proto-Slavic kry, from Proto-Balto-Slavic krū́ˀs, from Proto-Indo-European kréwh₂s, from Proto-Indo-European krewh₂- — blood outside the body.
кровавить (Russian): to stain with blood
Ancestry of “кровавить”, step by step