fides, fidei (f)
faith Virtues & the Soul
5th declension. Nunc manent fides spes caritas (Now remain faith hope love) — 1 Cor 13:13
In Scripture
At Jesus conversus, et videns eam, dixit : Confide, filia, fides tua te salvam fecit. Et salva facta est mulier ex illa hora.
But Jesus turning and seeing her, said: Be of good heart, daughter, thy faith hath made thee whole. And the woman was made whole from that hour.
Matthaeus 9 · 22