Did you mean Yiddish?
Yiddish
adjective
°Of or pertaining to the Yiddish language.
°Jewish.
noun
°A West Germanic language that developed from Middle High German dialects, with an admixture of vocabulary from multiple source languages including Hebrew-Aramaic, Romance, Slavic, English, etc., and written in Hebrew characters which is used mainly among Ashkenazic Jews from central and eastern Europe.