unigenitus
From LSJ
τὸ λακωνίζειν πολὺ μᾶλλόν ἐστιν φιλοσοφεῖν ἢ φιλογυμναστεῖν → to behave like a Lacedaemonian is much more to love wisdom than to love gymnastics (Plato, Protagoras 342e6)
Latin > English (Lewis & Short)
ūnĭ-gĕnĭtus: a, um, adj. id.,
I onlybegotten, only (eccl. Lat.; cf. unicus): unigenitus ille vocatur, qui parentibus solus sit, Hier. adv. Helv. 9: filius, Tert. adv Gnost. 7; Aug. Civ. Dei, 11, 24; Vulg. Johan 1, 14.
Latin > French (Gaffiot 2016)
ūnĭgĕnĭtus, a, um, [fils] unique : Hier. Virg. 9 || subst. m., Jésus-Christ : Eccl.