delegate vs appoint

delegate is a noun but appoint is not a noun.

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

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

delegate: give an assignment to (a person) to a post, or assign a task to (a person)
appoint: assign a duty, responsibility or obligation to

Other hypernyms of delegate include charge.

delegate (noun)	appoint (noun)
a person appointed or elected to represent others

delegate (verb)	appoint (verb)
give an assignment to (a person) to a post, or assign a task to (a person)	furnish
transfer power to someone	assign a duty, responsibility or obligation to
	create and charge with a task or function