* Mythology is not history: Greek myths are stories passed down through generations, not historical accounts. They are meant to teach lessons and explore themes, not to provide factual details.
* Ancient Greek was the dominant language: In the time period when Persephone's myths were formed, Ancient Greek was the primary language of the region.
* Mythological figures don't have specific languages: The deities in Greek mythology are not portrayed as speaking distinct languages. They are beings with supernatural powers who are part of a wider, shared world.
So, while we can't say Persephone spoke a specific language, it's safe to assume that if she communicated with humans, she would have used a form of Ancient Greek.