[Clearly between Arcade and the Legion, Sibyll had underestimated how dead the language used to be. Whatever, Snake wasn't going to hear any more about it.]

It's the language of a couple of tribes that are living in Zion. The further you get from more civilized parts of the US, the more the language starts changing from something you recognize into something new. I guess because they didn't live near Vaults, where everyone spoke English. [If they survived life in the Vault.]

I don't know how the New Cannanites ever learned their language. I had to be taught stuff. Couldn't just pick it up on my own.