Where does “sivurajaheitto” come from?

sivurajaheitto (Finnish) comes from Finnish rajaheitto, from Finnish raja, from Old East Slavic краи, from Proto-Slavic krajь, from Proto-Slavic krojiti, from Proto-Balto-Slavic krájīˀtei, from Proto-Indo-European kroyh₁-eye-ti, from Proto-Indo-European kroyh₁- — to sift, to separate.

Ancestry of “sivurajaheitto”, step by step

sivurajaheitto traces back through two separate lines of ancestry.

via Finnish rajaheitto

StepLanguageWordMeaning
1Finnishrajaheittothrow-in
2Finnishrajaborder, boundary, limit, line line or frontier area separating political or geographical regions
3Old East Slavicкраиedge; land, country
4Proto-Slavickrajьedge, end
5Proto-Slavickrojitito cut
6Proto-Balto-Slavickrájīˀtei
7Proto-Indo-Europeankroyh₁-eye-ti
8Proto-Indo-Europeankroyh₁-
9Proto-Indo-Europeankroh₁y-
10Proto-Indo-Europeankreh₁y-to sift, to separate

via Finnish sivu

StepLanguageWordMeaning
1Finnishsivupage, side; side; flank
Every word from Proto-Indo-European kreh₁y-