Lewis Short
Ŏpĭgĕna (noun F) : Ops-gigno
* The midwife, an epithet of Juno, as the tutelar goddess of lying-in women, Mart. Cap. 2, § 149; cf.: Opigenam Junonem matronae colebant, quod ferre eam opem in partu laborantibus credebant,Fest. p. 200 Müll.
Charlton T. Lewis, Charles Short, A Latin Dictionary