Where does “εἰκοσάεδρον” come from?
εἰκοσάεδρον (Ancient Greek) comes from Ancient Greek εἴκοσι, from Proto-Hellenic ewīkəti, from Proto-Indo-European wídḱm̥ti, from Proto-Indo-European dwidḱómt, from Proto-Indo-European déḱm̥t — ten.
Ancestry of “εἰκοσάεδρον”, step by step
Words derived from “εἰκοσάεδρον”