Yeah that could be the case. The ancient languages does have a mystical nature to them at the time when modernization and science weren’t that commonplace and myths do exist to explain how things came to be and why they happened. Some of my history and literature teachers used to tell us about these connections back in high school.

(That includes his mom of all things, but it is no big secret that he did learned a lot from her throughout his life.)

Perhaps there were wizards in these ancient times as well, writing spells in Ancient Latin or Greek or Egyptian for any future students to learn from. And some of these books did made their way to Kaisou.