Eastern Auxiliaries - Linguistic question

[Theodosius the Great]

Belts, shield bosses, and helmets with Greek inscriptions are known. Greek was the most widely understood language in the entire empire. It doesn't seem like a huge leap to assume that it was also used for unit identification on the battlefield, perhaps along side a Latin inscription. Nonetheless, the archaeological evidence is too weak to inspire much confidence in the theory.

Thank you, everyone, for your insights !



~Theo