Where does “δωδεκατημόριον” come from?

δωδεκατημόριον (Ancient Greek) comes from Ancient Greek δωδέκατος, from Ancient Greek δώδεκα, from Proto-Indo-European *dwoΗdeḱm̥.

Ancestry of “δωδεκατημόριον”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	δωδέκατος	twelfth
2	Ancient Greek	δώδεκα	twelve
3	Proto-Indo-European	*dwoΗdeḱm̥	—

δωδεκατημόριον — Etymology, Origin & Word History | Etymology Explorer