leaven vs elevate

leaven is a noun but elevate is not a noun.

Word	Noun	Adjective	Verb	Adverb
leaven	Yes	No	Yes	No
elevate	No	No	Yes	No

As verbs, elevate is a hypernym of leaven; that is, elevate is a word with a broader meaning than leaven:

Other hypernyms of leaven include bring up, get up, lift, raise.

leaven (noun)	elevate (noun)
an influence that works subtly to lighten or modify something
a substance used to produce fermentation in dough or a liquid

leaven (verb)	elevate (verb)
cause to puff up with a leaven	raise in rank or condition
	raise from a lower to a higher position
	give a promotion to or assign to a higher position