
We can see some references to old or past languages in the naming conventions.
But do these languages get used in common speech among people of the same race? Probably not. At least, not within Eorzea. There does seem to be some form of a common language used amongst all the people. How much of this is magic Echo-enabled Warrior of Light ability, who knows?
Seekers of the Sun Wrote:The first name is always proceeded by a letter representing their tribe. In the mass exodus which occurred during the Fifth Umbral Era, 26 Seeker of the Sun tribes crossed the seas (which had frozen solid as a result of the Calamity) to Eorzea in search of food and warmer climates. The names of these tribes contained many sounds which were difficult to represent with the existing Eorzean alphabet; but the fact that there were the same exact number of tribes as letters in the Eorzean alphabet was taken as a sign that they were destined to make the new realm their home, and so assigned each tribe with a letter/sound that was closest to its name. Over time, this resulted in the changing of the pronunciation to more closely resemble the pronunciation of the Eorzean letter than that of the original word.
The tribe names are originally based on traditional beastkin, scalekin, or cloudkin totems, which are said to protect the tribe.
Roegadyn Sea Wolf Names Wrote:Sea Wolf names are actually all formed from two words taken from the ancient Roegadyn language that the race's ancestors spoke before they came to Eorzea
But do these languages get used in common speech among people of the same race? Probably not. At least, not within Eorzea. There does seem to be some form of a common language used amongst all the people. How much of this is magic Echo-enabled Warrior of Light ability, who knows?