Greek

Greek is the mythical magical language in Chronexia and the Eight Seals, however of no relation to the actual real world country of Greece."'Usually, to invoke elemental magic, you need to know and call out to a Greek relic. During this short time laps, the user must focus their physical energy into the element they want to unvoke. The incantation is more like a recipe, but invoking the element without the relic requires several years of training.'-Direct quote from the book explaining Elemental magic" Greek appears to be written in actual greek, however is used primarily in the book as the dragon language. In the passage where Ryu speaks to a dragon, you can translate the greek as follows:

Ryu: I need more strength! I already own only the dragon of the East and North.

Dragon: Young man, you have earned my respect by surviving so far. Would you like to make a deal with me? If you promise to leave my area, I swear by my honor, that no matter what happens, I will appear and fight by your side, risking my life.

There are also gods in the series that are related to Greek, with Zeus being the most obviously based on actual greek mythology. Other gods with greek sounding names include Gaia, Chronos and Pyro.