ἀγαστῶς
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
French (Bailly abrégé)
adv.
admirablement.
Étymologie: ἀγαστός.
Russian (Dvoretsky)
ἀγαστῶς: замечательно, изумительно (πρᾶξαι Xen.).