perk up vs arouse

perk up and arouse both are verbs.

Word	Noun	Adjective	Verb	Adverb
perk up	No	No	Yes	No
arouse	No	No	Yes	No

As verbs, perk up and arouse are synonyms defined as:

Other synonyms of perk up include brace, energise, energize, stimulate.

perk up (verb)	arouse (verb)
gain or regain energy	cause to be alert and energetic
cause to be alert and energetic	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