Did a united German language go extinct? It had split in the 5th century. Did a united Scandinavian language go extinct? Old Norse survived until the 13th century if we trust Wikipedia.1. It is called East Slavic in Crusader Kings. And no, it's not appropriate to use it in EU5 because this language became extinct in 14th century
Clearly, there is much more to what is portrayed in-game by languages. As all of the portrayed ones are technically extinct!
There was no Scandinavian, no united German. Everywhere were dialects, and some of them were already incredibly old
Then why are they portrayed as united?
Perhaps the language extinction is not a factor for the developers in this case.

I believe in this image only French, Hungarian and English have existed for real.
And then, if we go deeper, the dialects of those languages repeat their names

The language in the game is a much broader term compared to the current understanding. It can be measured with some grouping
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