You can see the beginning of new languages evolving with the the mix of multiculturalism, taking words and expressions from their old languages and adding to th

You can see the beginning of new languages evolving with the the mix of multiculturalism, taking words and expressions from their old languages and adding to the new language where they live. And because the majority does not have these words and expressions, and probably never will, eventually they will diverge. Yiddish is a example of this.