grooming vs primping

grooming and primping both are nouns.

Word	Noun	Adjective	Verb	Adverb
grooming	Yes	No	No	No
primping	Yes	No	No	No

As nouns, primping is a hyponym of grooming; that is, primping is a word with a more specific, narrower meaning than grooming:

Other hyponyms of grooming include investment, toilet, toilette.

grooming (noun)	primping (noun)
the activity of getting dressed; putting on clothes	careful or finicky grooming
activity leading to skilled behavior