Where does “Einheitskreis” come from?

Einheitskreis (German) comes from German Kreis, from Middle High German kreiz, from Old High German kreiz, from Proto-Germanic kraitaz — A scoring; circle; ring.

Einheitskreis (German): unit circle

Definitions

  1. unit circle

Ancestry of “Einheitskreis”, step by step

Einheitskreis traces back through two separate lines of ancestry.

via German Kreis

StepLanguageWordMeaning
1GermanKreiscircle; range, scope; a type of territorial...
2Middle High Germankreiz—
3Old High Germankreiz—
4Proto-GermanickraitazA scoring; circle; ring

via German Einheit

StepLanguageWordMeaning
1GermanEinheitunit; unity
2Germaneinsone; one, one o'clock; Alternative form of eines:...
3Middle High Germaneines—
Every word from Proto-Germanic kraitaz →Every word from Old High German kreiz →Every word from Middle High German kreiz →
Einheitskreis — Etymology, Origin & Word History | Etymology Explorer