outlaw vs prohibit

outlaw is a noun but prohibit is not a noun.

Word	Noun	Adjective	Verb	Adverb
outlaw	Yes	Yes	Yes	No
prohibit	No	No	Yes	No

As verbs, prohibit is a hypernym of outlaw; that is, prohibit is a word with a broader meaning than outlaw:

Other hypernyms of outlaw include disallow, forbid, interdict, nix, proscribe, veto.

outlaw (noun)	prohibit (noun)
someone who has committed a crime or has been legally convicted of a crime

outlaw (adjective)	prohibit (adjective)
contrary to or forbidden by law
disobedient to or defiant of law

outlaw (verb)	prohibit (verb)
declare illegal; outlaw	command against