mother wit vs nous

mother wit and nous both are nouns.

Word	Noun	Adjective	Verb	Adverb
mother wit	Yes	No	No	No
nous	Yes	No	No	No

As nouns, nous is a hyponym of mother wit; that is, nous is a word with a more specific, narrower meaning than mother wit:

Other hyponyms of mother wit include logic, road sense.

mother wit (noun)	nous (noun)
sound practical judgment	that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason
	common sense