Aegean language (Pacifica)
Aegean is an ancient language originally spoken in regions of the Rainbow Islands, and to this day its the official language spoken in UPRAN, over at Central Cordilia, and the province of Aegea in New Dacia, in northwestern Bailtem.
OOC
Aegean is the same language as real-life Greek. It was the official language in both Rhayna and Proktethia, but since Proktethia doesn't exist anymore, Rhayna and New Dacia are the only nation that speaks Aegean, and they aren't the origin of it.