institute vs appoint

institute is a noun but appoint is not a noun.

Word	Noun	Adjective	Verb	Adverb
institute	Yes	No	Yes	No
appoint	No	No	Yes	No

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

Other hyponyms of institute include fix, constitute, name, nominate.

institute (noun)	appoint (noun)
an association organized to promote art or science or education

institute (verb)	appoint (verb)
advance or set forth in court	furnish
set up or lay the groundwork for	assign a duty, responsibility or obligation to
	create and charge with a task or function