Where does “Siebenflächner” come from?

Siebenflächner (German) comes from German Sieben, from Middle High German siben, from Old High German sibun, from Proto-West Germanic *sibun, from Proto-Germanic sebun, from Proto-Germanic sebunt, from Proto-Indo-European septḿ̥ — seven.

Siebenflächner (German): heptahedron

Definitions

  1. heptahedron

Ancestry of “Siebenflächner”, step by step

Siebenflächner traces back through two separate lines of ancestry.

via German Sieben

StepLanguageWordMeaning
1GermanSiebenseven; gerund of sieben; the act of sifting;...
2Middle High Germansiben—
3Old High Germansibunseven
4Proto-West Germanic*sibun—
5Proto-Germanicsebunseven
6Proto-Germanicsebunt—
7Proto-Indo-Europeanseptḿ̥seven

via German Flächen

StepLanguageWordMeaning
1GermanFlächenplural of Fläche; area
2German-enA suffix of verbs in their infinitive form; A...
3Middle High German-en—
4Old High German-īn—
5Proto-Germanic-īnaz-en
6Proto-Indo-European-iHnosCreates adjectives of materials
7Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Germanic sebunt →Every word from Proto-Germanic sebun →