Where does “ettagonale” come from?
ettagonale (Italian) comes from Italian ettagono, from Ancient Greek ἑπτάγωνον, from Ancient Greek ἑπτάγωνος, from Ancient Greek ἑπτά, from Proto-Hellenic heptə́, from Proto-Indo-European septḿ̥ — seven.
ettagonale (Italian): heptagonal
Ancestry of “ettagonale”, step by step