illegalize vs criminalize

illegalize and criminalize both are verbs.

Word	Noun	Adjective	Verb	Adverb
illegalize	No	No	Yes	No
criminalize	No	No	Yes	No

As verbs, illegalize and criminalize are synonyms defined as:

Other synonyms of illegalize include criminalise, illegalise, outlaw.

illegalize (verb)	criminalize (verb)
declare illegal; outlaw	declare illegal; outlaw
	treat as a criminal