ask for vs arouse

ask for and arouse both are verbs.

Word	Noun	Adjective	Verb	Adverb
ask for	No	No	Yes	No
arouse	No	No	Yes	No

As verbs, arouse is a hypernym of ask for; that is, arouse is a word with a broader meaning than ask for:

Other hypernyms of ask for include elicit, enkindle, evoke, fire, kindle, provoke, raise.

ask for (verb)	arouse (verb)
express the need or desire for	cause to be alert and energetic
increase the likelihood of	cause to become awake or conscious
	stop sleeping
	summon into action or bring into existence, often as if by magic
	call forth (emotions, feelings, and responses)
	to evoke sexual feelings
	to begin moving