affect vs arouse

affect is a noun but arouse is not a noun.

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

As verbs, arouse is a hyponym of affect; that is, arouse is a word with a more specific, narrower meaning than affect:

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

affect (verb)	arouse (verb)
act physically on; have an effect upon	cause to be alert and energetic
have an effect upon	cause to become awake or conscious
make believe with the intent to deceive	stop sleeping
have an emotional or cognitive impact upon	summon into action or bring into existence, often as if by magic
connect closely and often incriminatingly	call forth (emotions, feelings, and responses)
	to evoke sexual feelings
	to begin moving