Where does “meshuge” come from?

meshuge (Yiddish) comes from Hebrew מְשׁוּגָּע, from Hebrew שׁוּגַּע — be driven mad.

Ancestry of “meshuge”, step by step

Step	Language	Word	Meaning
1	Hebrew	מְשׁוּגָּע	crazy
2	Hebrew	שׁוּגַּע	be driven mad

meshuge — Etymology, Origin & Word History | Etymology Explorer