designate vs delegate

designate is not a noun while delegate is a noun.

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

As verbs, designate and delegate are synonyms defined as:

designate and delegate: give an assignment to (a person) to a post, or assign a task to (a person)

Other synonyms of designate include assign, depute.

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

designate: give an assignment to (a person) to a post, or assign a task to (a person)
delegate: transfer power to someone

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

designate (adjective)	delegate (adjective)
appointed but not yet installed in office

designate (verb)	delegate (verb)
design or destine	give an assignment to (a person) to a post, or assign a task to (a person)
assign a name or title to	transfer power to someone
decree or designate beforehand
indicate a place, direction, person, or thing; either spatially or figuratively
give an assignment to (a person) to a post, or assign a task to (a person)