Where does “icosaedro” come from?

icosaedro (Portuguese) comes from Ancient Greek εἰκοσάεδρον, from Ancient Greek εἴκοσι, from Proto-Hellenic ewīkəti, from Proto-Indo-European wídḱm̥ti, from Proto-Indo-European dwidḱómt, from Proto-Indo-European déḱm̥t — ten.

icosaedro (Portuguese): icosahedron

Definitions

icosahedron

Ancestry of “icosaedro”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	εἰκοσάεδρον	—
2	Ancient Greek	εἴκοσι	twenty
3	Proto-Hellenic	ewīkəti	—
4	Proto-Indo-European	wídḱm̥ti	twenty
5	Proto-Indo-European	dwidḱómt	—
6	Proto-Indo-European	déḱm̥t	ten

Every word from Proto-Indo-European déḱm̥t →

icosaedro — Etymology, Origin & Word History | Etymology Explorer