ELOPEMENT
elopement
(noun) the act of running away with a lover (usually to get married)
Source: WordNet® 3.1
Etymology
Noun
elopement (plural elopements)
The act of running away from home with a paramour.
The act of running away secretly for the purpose of getting married with one's intended spouse.
The act of running away from home (for any reason).
Source: Wiktionary
E*lope"ment, n.
Definition: The act of eloping; secret departure; -- said of a woman and a
man, one or both, who run away from their homes for marriage or for
cohabitation.
Source: Webster’s Unabridged Dictionary 1913 Edition