διαβόλως
From LSJ
λέγεις, ἃ δὲ λέγεις ἕνεκα τοῦ λαβεῖν λέγεις → you speak, but you say what you say for the sake of gain (Menander, fr. 776)
French (Bailly abrégé)
adv.
en termes malveillants ou calomnieux.
Étymologie: διάβολος.
Russian (Dvoretsky)
διαβόλως: клеветнически Thuc.
English (Woodhouse)
(see also: διάβολος) calumniously