appoint vs co-opt

appoint and co-opt both are verbs.

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

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

Other hyponyms of appoint include pack.

appoint (verb)	co-opt (verb)
furnish	take or assume for one's own use
assign a duty, responsibility or obligation to	appoint summarily or commandeer
create and charge with a task or function	choose or elect as a fellow member or colleague
	neutralize or win over through assimilation into an established group