Сива́шівка (Ukrainian) comes from Ukrainian Сива́ш, from Ukrainian си́вий, from Old East Slavic сивъ, from Proto-Slavic sivъ, from Proto-Balto-Slavic śī́ˀwas, from Proto-Indo-European (s)ḱih₃-wó-s, from Proto-Indo-European (s)ḱeh₃- — darkness, shadow.