Thanks to my Greek friends,

The Ancient Greek version of κορε = Young girl or maiden.
The Modern Greek version of κορε = Daughter

There's a very good chance that SquareSoft doesn't know enough Greek, or hire Greek translators for that matter. You know if you change the language of your Input keyboard to Greek, you'll have some hard time putting exact Greek characters to finish a word.

Proof: they kind of did the same thing to Latin on the paintings in Ultimecia's castle. The Latin words on the painting are spelt correctly BUT the Latin sentences are wrong.

This is very simple because if it's just a ID thing or something out of random, SquareSoft could have put more disoriented Greek characters that means absolutely nothing what so ever, FAR from 'Young girl', 'Maiden', or 'Daughter'. These words are actually relevant in the world of VIII.