mishegaas vs mishegoss

mishegaas and mishegoss both are nouns.

Word	Noun	Adjective	Verb	Adverb
mishegaas	Yes	No	No	No
mishegoss	Yes	No	No	No

As nouns, mishegaas and mishegoss are synonyms defined as:

mishegaas and mishegoss: (Yiddish) craziness; senseless behavior or activity

Other synonyms of mishegaas include meshugaas.

mishegaas (noun)	mishegoss (noun)
(Yiddish) craziness; senseless behavior or activity	(Yiddish) craziness; senseless behavior or activity