courage = Mut (מוט)
The Yiddish word for courage or nerve is "chutzpah." It is often used to describe someone who has audacity or boldness in the face of challenges.
Bling is not a Yiddish word or a Hebrew word.
The Yiddish word for Yiddish is "Yidish" (יידיש).
The Yiddish word for darkness is "dunkel."
It is the Yiddish word for a woman who is not Jewish. It is slang in English, but it is not slang in Yiddish.
The Yiddish word for expert is "experte" (אַקספּערטע).
The Yiddish word for grandfather is "zeide" or "zayde."
One word for knickknacks in Yiddish is "tchotchkes".
The Yiddish word for disappointed is "Ahntoisht".
Spinoza is not a Yiddish word. It appears to be a Spanish name.
The Yiddish word for little girl is "meidele" (מיידעלע).
The yiddish word for dumpling is 'kneydl' :)