Where does “heptagonal” come from?

heptagonal (English) comes from English heptagon, from Ancient Greek ἑπτάγωνον, from Ancient Greek ἑπτάγωνος, from Ancient Greek ἑπτά, from Proto-Hellenic heptə́, from Proto-Indo-European septḿ̥ — seven.

heptagonal (English): Having seven angles and sides; Belonging to the...

Definitions

  1. Having seven angles and sides; Belonging to the...

Ancestry of “heptagonal”, step by step

StepLanguageWordMeaning
1EnglishheptagonA polygon with seven sides and seven angles
2Ancient Greekἑπτάγωνον—
3Ancient Greekἑπτάγωνοςseven-angled
4Ancient Greekἑπτάseven
5Proto-Hellenicheptə́seven
6Proto-Indo-Europeanseptḿ̥seven

Words derived from “heptagonal”

Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Hellenic heptə́ →Every word from Ancient Greek ἑπτά →