λυγρῶς
From LSJ
ὃ γὰρ βούλεται, τοῦθ' ἕκαστος καὶ οἴεται → what he wishes to be true, each person also believes to be true | what he wishes, each person also believes
French (Bailly abrégé)
adv.
d'une manière déplorable ou d'une manière funeste.
Étymologie: λυγρός.