Where does “luokkaraja” come from?

luokkaraja (Finnish) comes 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-, from Proto-Indo-European kroh₁y- — to sift, to separate.

luokkaraja (Finnish): class border

Definitions

  1. class border

Ancestry of “luokkaraja”, step by step

luokkaraja traces back through two separate lines of ancestry.

via Finnish raja

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

via Finnish luokka

StepLanguageWordMeaning
1Finnishluokkaclass; class, social class; grade
2Finnishluokkishaft bow
3Proto-Slaviclǫkъbow
4Proto-Balto-Slavic*lankásbow
5Proto-Indo-Europeanlenk-to bend
Every word from Proto-Indo-European kreh₁y-Every word from Proto-Indo-European kroh₁y-Every word from Proto-Indo-European kroyh₁-