What's the word for enticing someone and eloping with them?

What word(verb) should go in the blank in the sentence below?

He----X's wife/girlfriend and married her.

Basically I need a word that means enticed, and later eloped with (X's wife/girlfriend.)

I cannot think of a proper word for this context, and so I would appreciate any help forthcoming.

I am not sure you will easily find one single word that contains both connotations (of enticing and eloping). I would express your sentence in this way

He seduced X's wife/girlfriend into eloping with him.

Longman defines the expression seduce somebody into doing something as

to make someone want to do something by making it seem very attractive or interesting to them:

• Leaders are people who can seduce other people into sharing their dream.

Entice into doing something is just as good.

Certainly, eloping doesn't always end up in marriage, so you may consider saying:

He seduced X's wife/girlfriend into marrying him.

which would hint at the fact that the marriage was possible through an elopement.