Where does “είκοσι” come from?
είκοσι (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.
είκοσι (Greek): twenty, 20
Ancestry of “είκοσι”, step by step