No. Yid just means Jew. Yiddish is a blended language of German and ancient Hebrew.
Yiddish (aka. Judeo-German) is a secular language of recent times
primarily based on a combination of German and Hebrew with words from
Polish, French, English and many other languages. The word Yiddish
literally means "Jewish" as it was created as a secular-language of the
Jewish people living in pre-Nazi Europe.
https://www.wikivs.com/wiki/Hebrew_vs_Yiddish
Jews around the globe created languages easier to use than ancient Hebrew; Yiddish is just one of them and was used in a particular geographical area of Europe.
The language almost died; it was really only used by 250,000 New Yorkers. It is now being resurrected with classes being taught at Oxford and Columbia.