nominate vs co-opt

nominate and co-opt both are verbs.

Word	Noun	Adjective	Verb	Adverb
nominate	No	No	Yes	No
co-opt	No	No	Yes	No

As verbs, co-opt is a hyponym of nominate; that is, co-opt is a word with a more specific, narrower meaning than nominate:

Other hyponyms of nominate include pack.

nominate (verb)	co-opt (verb)
propose as a candidate for some honor	take or assume for one's own use
create and charge with a task or function	appoint summarily or commandeer
charge with a function; charge to be	choose or elect as a fellow member or colleague
put forward; nominate for appointment to an office or for an honor or position	neutralize or win over through assimilation into an established group