Where does “Fünfzehneck” come from?

Fünfzehneck (German) comes from German ecke, from Middle High German ecke, from Old High German ecka, from Proto-West Germanic aggju, from Proto-Germanic agjō, from Proto-Indo-European h₂eḱ- — sharp.

Fünfzehneck (German): pentadecagon

Definitions

  1. pentadecagon

Ancestry of “Fünfzehneck”, step by step

Fünfzehneck traces back through two separate lines of ancestry.

via German ecke

StepLanguageWordMeaning
1Germaneckecorner, edge
2Middle High Germanecke
3Old High Germanecka
4Proto-West Germanicaggjuedge, corner
5Proto-Germanicagjōedge, corner
6Proto-Indo-Europeanh₂eḱ-sharp

via German fünfzehn

StepLanguageWordMeaning
1Germanfünfzehnfifteen

Words derived from “Fünfzehneck

Every word from Proto-Indo-European h₂eḱ-Every word from Proto-Germanic agjōEvery word from Proto-West Germanic aggju
Fünfzehneck — Etymology, Origin & Word History | Etymology Explorer