Where does “hornréttur” come from?

hornréttur (Icelandic) comes from Icelandic horn, from Old Norse horn, from Proto-Norse ᚺᛟᚱᚾᚨ, from Proto-Germanic hurną, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

hornréttur (Icelandic): perpendicular, right-angled, square

Definitions

  1. perpendicular, right-angled, square

Ancestry of “hornréttur”, step by step

hornréttur traces back through two separate lines of ancestry.

via Icelandic horn

StepLanguageWordMeaning
1Icelandichornhorn; fin; corner
2Old Norsehornhorn; corner; angle
3Proto-Norseᚺᛟᚱᚾᚨhorn
4Proto-Germanichurnąhorn
5Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
6Proto-Indo-Europeankr̥-to turn, to bend
7Proto-Indo-Europeanker-army

via Icelandic réttur

StepLanguageWordMeaning
1Icelandicrétturstraight; right; right, correct
2Old Norseréttrright
3Proto-Germanicrehtazright, straight; morally upright, just
4Proto-Indo-Europeanh₃reǵtósstraightened, right, upright
5Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-