Where does “Kreissehne” come from?

Kreissehne (German) comes from German Sehne, from Middle High German senne, from Old High German senawa, from Proto-West Germanic sinu, from Proto-Germanic senawō, from Proto-Indo-European snḗh₁wr̥, from Proto-Indo-European (s)neh₁- — to spin (thread), to sew.

Kreissehne (German): chord of a circle

Definitions

  1. chord of a circle

Ancestry of “Kreissehne”, step by step

Kreissehne traces back through two separate lines of ancestry.

via German Sehne

StepLanguageWordMeaning
1GermanSehnesinew
2Middle High Germansenne—
3Old High Germansenawa—
4Proto-West Germanicsinusinew
5Proto-Germanicsenawōcord, tendon, sinew; nerve
6Proto-Indo-Europeansnḗh₁wr̥tendon, sinew; sinew, tendon
7Proto-Indo-European(s)neh₁-to spin (thread), to sew

via German Kreis

StepLanguageWordMeaning
1GermanKreiscircle; range, scope; a type of territorial...
2Middle High Germankreiz—
3Old High Germankreiz—
4Proto-GermanickraitazA scoring; circle; ring
Every word from Proto-Indo-European (s)neh₁- →Every word from Proto-Indo-European snḗh₁wr̥ →Every word from Proto-Germanic senawō →
Kreissehne — Etymology, Origin & Word History | Etymology Explorer