EPIPHRON was the daimon (spirit) of prudence, shrewdness, thoughtfulness, carefulness and sagacity.

Pseudo-Hyginus, Preface (trans. Grant) (Roman mythographer C2nd A.D.) :
"From Nox (Night) and Erebus [were born] : Fatum (Fate), Senectus (Old Age), Mors (Death), Letum (Dissolution), Continentia (Moderation), Somnus (Sleep), Somnia (Dreams), Amor (Love)--that is Lysimeles, Epiphron (Prudence), Porphyrion, Epaphus, Discordia (Discord), Miseria (Misery), Petulantia (Wantonness), Nemesis (Retribution), Euphrosyne (Good Cheer), Amicitia (Friendship), Misericordia (Compassion), Styx (Hatred); the three Parcae (Fates), namely Clotho, Lachesis and Atropos; the Hesperides."

N.B. Hyginus does not attempt to translate the Greek word "Epiphron" into Latin. Several other names in the list are also Greek, e.g. Nemesis and Euphrosyne.

Sources:

• Hyginus, Fabulae - Latin Mythography C2nd A.D.