For 10 points, name this language used to write the plays The Golem and The Dybbuk.
The title character of a play written in this language descends into an underground cave to retrieve some vials planted there by the villainous priest Thaddeus, but then goes mad. The German-language play Uriel Acosta was one of the first plays to be translated into this language, becoming a standard part of its theatrical repertoire; Uriel Acosta is the signature role of the protagonist of a novel about a theater group which performs in this language, (*) Wandering Stars. A play known as this language's King Lear was the signature role of Stella Adler's      father, Jacob Adler. A play written in this language is about the lovers Khanan and Leah, the latter of whom is possessed by the title evil spirit. For 10 points, name this language used to write the plays The Golem and The Dybbuk.
The title character of a play written in this language descends into an underground cave to retrieve some vials planted there by the villainous priest Thaddeus, but then goes mad.
Yiddish