Tonguage

Whether the ideas underlying them are expressed and conveyed by eyeage or by tonguage is a detail that matters nothing.

I like the French now but can't get on with the Italian tonguage (good word).

In all the districts of Maharashtra except Aurangabad and Bhandara, the number of persons who returned Hindi as a subsidiary language outnumber those with Hindi as mother tonguage.

We have a language of social relations, even though we're not thoroughly aware of it— but it isn't all "language" in the sense of "tonguage."