espouse vs intermarry

espouse and intermarry both are verbs.

Word	Noun	Adjective	Verb	Adverb
espouse	No	No	Yes	No
intermarry	No	No	Yes	No

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

Other hyponyms of espouse include inmarry, mismarry, wive, wive, remarry.

espouse (verb)	intermarry (verb)
take up the cause, ideology, practice, method, of someone and use it as one's own	marry within the same ethnic, social, or family group
choose and follow; as of theories, ideas, policies, strategies or plans
take in marriage; married