Where does “helleraja” come from?

helleraja (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.

helleraja (Finnish): the temperature limit or threshold of +25 °C (77 F) above which a weather is considered (hot enough) to be helle

Definitions

  1. the temperature limit or threshold of +25 °C (77 F) above which a weather is considered (hot enough) to be helle

Ancestry of “helleraja”, step by step

helleraja 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 helle

StepLanguageWordMeaning
1FinnishhelleA hot place or heat; Hot weather, swelter;...
2FinnishHellevi
3DanishHelvigborne by a 14th century queen of Denmark
Every word from Proto-Indo-European kreh₁y-