Could not find Ποσιδηίου in Logeion dictionaries.
Ποσιδηίου
Proper-name noun neuter genitive singular of
Ποσιδήϊον
Ποσιδηίου
proper-name adjective masculine genitive singular, proper-name adjective neuter genitive singular, Proper-name noun neuter genitive singular of
Ποσιδήϊος
See Ποσιδηίου in Morpho