What is a synonym for "espouse"?

Common synonyms include: marry, wed, accept, adopt, adopt, advocate.

Espouse

/ɪˈspaʊs/ verb

verb ·Moderate ·High school level

Verb

1
To marry. transitive
"For I am iealous ouer you with godly iealousie, for I haue espoused you to one husband, that I may present you as a chaste virgin to Christ."
2
take up the cause, ideology, practice, method, of someone and use it as one's own wordnet
3
To accept, support, or take on as one’s own (an idea or a cause). figuratively, transitive
"Although Dowty’s proposal is attractive from the point of view of the alternative argument linking theory that I am espousing, since it eschews the use of thematic roles and thematic role hierarchies, […], but it still has some drawbacks."
4
choose and follow; as of theories, ideas, policies, strategies or plans wordnet
5
take in marriage; married wordnet

"Libertarians espouse free markets and limited government."

From Middle English espousen, borrowed from Old French espouser, from Latin spōnsāre (frequentative of spondeō), from Proto-Indo-European *spend-.