To betroth; to promise in marriage; to give as spouse.

To take as spouse; to take to wife; to marry.

To take to one's self with a view to maintain; to make one's own; to take up the cause of; to adopt; to embrace.

take in marriage

take up the cause, ideology, practice, method, of someone and use it as one's own; "She embraced Catholicism"; "They adopted the Jewish faith"