Yiddish 

Deriving from Hebrew, German, Aramaic, and some Slavic languages, Yiddish was primarily spoken by Ashkenazi Jews, beginning with central and eastern European communities in the nineth century. While the spoken form derives from a variety of sources, Yiddish maintains the Hebrew alphabet in its written form. The Holocaust was a heavy blow to the use of Yiddish, however in recent decades it has been increasingly used by Haredi and Hasidic Jews. Yiddish may also serve as an adjective describing particularities of Jewish, specifically Ashkenazi, culture such as music, cooking, and customs.