Where does “heptagonal” come from?

heptagonal (Catalan) comes from Catalan heptàgon, from Latin heptagonus, from Ancient Greek ἑπτάγωνον, from Ancient Greek ἑπτάγωνος, from Ancient Greek ἑπτά, from Proto-Hellenic heptə́, from Proto-Indo-European septḿ̥ — seven.

heptagonal (Catalan): heptagonal

Definitions

  1. heptagonal

Ancestry of “heptagonal”, step by step

heptagonal traces back through two separate lines of ancestry.

via Catalan heptàgon

StepLanguageWordMeaning
1Catalanheptàgonheptagon
2Latinheptagonus
3Ancient Greekἑπτάγωνον
4Ancient Greekἑπτάγωνοςseven-angled
5Ancient Greekἑπτάseven
6Proto-Hellenicheptə́seven
7Proto-Indo-Europeanseptḿ̥seven

via Catalan al

StepLanguageWordMeaning
1Catalanal
Every word from Proto-Indo-European septḿ̥Every word from Proto-Hellenic heptə́Every word from Ancient Greek ἑπτά