inopino
From LSJ
ἡ τῆς παιδογονίας συνουσία → sexual intercourse for the purpose of bearing children
Latin > French (Gaffiot 2016)
ĭnŏpīnō, adv., c. inopinato : M. Emp. 14.
Latin > German (Georges)
inopīnō, Adv. (inopinus), unvermutet, Marc. Emp. 14. fol. 104 (b), 5 Ald.