Illicit cohabitation
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
The living together as man and wife of two persons who are not lawfully married, with the implication that they habitually practice fornication. See Rex v. Kalailoa, 4 Hawaii, 41,
Defined under licit intercourse in Black's Law Dictionary.