waken vs reawaken

waken and reawaken both are verbs.

Word	Noun	Adjective	Verb	Adverb
waken	No	No	Yes	No
reawaken	No	No	Yes	No

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

Other hyponyms of waken include bring around, bring back, bring round, bring to, call.

waken (verb)	reawaken (verb)
stop sleeping	awaken once again
cause to become awake or conscious