Yiddish

From Conservapedia

Yiddish (ייִדיש yidish; literally, Jewish) is a language spoken by Ashkenazi Jews. It is a branch of Old High German, with many loan words from other European languages and from Hebrew. Yiddish is written in the Hebrew alphabet. When the modern nation of Israel was first created in 1948 they chose between Yiddish and Hebrew as their state language. Hebrew won out.

American English has a lot of loanwords from Yiddish, for example bagel, kvetch, borscht, chutzpah, to name just a few. Yiddish was also spoken by many Jewish American comedians, like the Three Stooges and the Marx Brothers. This is used by these comedians as humorous "gibberish" when assuming another identity.

Some Yiddish songs have been introduced successfully into American culture, the most popular being "Bei Mir Bist Du Shein".