ἐχθίων
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
English (LSJ)
ον, gen. ονος, Comp. of ἐχθρός,
A more hateful, A.Pers.438, S.OT272, E.El.222, Ar.Av.370, Th.4.86, Pl.Ly.214c. Adv. ἐχθιόνως, ἔχειν X.Smp.4.3.