Where does “rajaussiipi” come from?

rajaussiipi (Finnish) comes from Finnish rajaus, from Finnish rajata, from Ingrian 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 — to sift, to separate.

rajaussiipi (Finnish): barn door tool for shaping light

Definitions

  1. barn door tool for shaping light

Ancestry of “rajaussiipi”, step by step

rajaussiipi traces back through two separate lines of ancestry.

via Finnish rajaus

StepLanguageWordMeaning
1Finnishrajauslimiting; cropping
2Finnishrajatato limit, confine; to crop
3Ingrianrajaborder; boundary
4Old East Slavicкраиedge; land, country
5Proto-Slavickrajьedge, end
6Proto-Slavickrojitito cut
7Proto-Balto-Slavickrájīˀtei
8Proto-Indo-Europeankroyh₁-eye-ti
9Proto-Indo-Europeankroyh₁-
10Proto-Indo-Europeankroh₁y-
11Proto-Indo-Europeankreh₁y-to sift, to separate

via Finnish siipi

StepLanguageWordMeaning
1Finnishsiipiwing; sail; blade or a paddle of a water wheel or...
Every word from Proto-Indo-European kreh₁y-Every word from Proto-Indo-European kroh₁y-Every word from Proto-Indo-European kroyh₁-