Wiktionary
marry off
vb. (context idiomatic English) to force someone to get married, usually a relative.
Usage examples of "marry off".
Why don't you send that lot of dandies down to Queenston to plague your granddaughter if you want to marry off a princess?
Undoubtedly that was why George had made an effort to marry off Diana before he himself settled down.
There are a number of people out there trying to marry off their rich daughters.
Will you let him marry off Callina to save his face before Council?