affect vs pertain

affect is a noun but pertain is not a noun.

Word	Noun	Adjective	Verb	Adverb
affect	Yes	No	Yes	No
pertain	No	No	Yes	No

As verbs, pertain is a hypernym of affect; that is, pertain is a word with a broader meaning than affect:

Other hypernyms of affect include bear on, come to, concern, have to do with, refer, relate, touch, touch on.

affect (noun)	pertain (noun)
the conscious subjective aspect of feeling or emotion

affect (verb)	pertain (verb)
act physically on; have an effect upon	be a part or attribute of
have an effect upon	be relevant to
make believe with the intent to deceive
have an emotional or cognitive impact upon
connect closely and often incriminatingly