psych up vs agitate

psych up and agitate both are verbs.

Word	Noun	Adjective	Verb	Adverb
psych up	No	No	Yes	No
agitate	No	No	Yes	No

As verbs, agitate is a hypernym of psych up; that is, agitate is a word with a broader meaning than psych up:

Other hypernyms of psych up include charge, charge up, commove, excite, rouse, turn on.

psych up (verb)	agitate (verb)
get excited or stimulated	change the arrangement or position of
	cause to be agitated, excited, or roused
	move very slightly
	move or cause to move back and forth
	try to stir up public opinion
	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for