horrifice
From LSJ
ὅταν δὲ τἄμ' ἀθυμήσαντ' ἴδῃς, σύ μου τὸ δεινὸν καὶ διαφθαρὲν φρενῶν ἴσχναινε παραμυθοῦ θ' → whenever you see me despondent over my situation, do what you can to lessen and relieve what is wild and senseless in my thinking | whenever you see me despondent, you must cure the grim derangement of my mind and encourage me
Latin > English (Lewis & Short)
horrĭfĭcē: adv., v. horrificus.
Latin > French (Gaffiot 2016)
horrĭfĭcē,¹⁵ d’une manière effrayante : Lucr. 2, 609 ; 4, 36.