co-opt vs appoint

co-opt and appoint both are verbs.

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

As verbs, appoint is a hypernym of co-opt; that is, appoint is a word with a broader meaning than co-opt:

Other hypernyms of co-opt include constitute, name, nominate.

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