elopement

elope +‎ -ment

elopement (plural elopements)

1. The act of running away from home with a paramour.
   • 1814 July, [Jane Austen], chapter LXVI, in Mansfield Park: A Novel. In Three Volumes, volume III, London: Printed for T[homas] Egerton, […], OCLC 39810224, page 287:

     You may not have heard of the last blow—Julia's elopement; she is gone to Scotland with Yates.

   • 1869, Louisa May Alcott, chapter 27, in Little Women:

     […] Jo […] was already deep in the concoction of her story, being unable to decide whether the duel should come before the elopement or after the murder.

2. The act of running away secretly for the purpose of getting married with one's intended spouse.
3. The act of running away from home (for any reason).