εἰδότως
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
Adv. of εἰδώς,
A knowingly, Aeschin.1.111; as one who knows, scientifically, Arist.Ph.188a5.
German (Pape)
[Seite 724] kundig, geschickt; Aesch. 1, 111; Arist. phys. ausc. 1, 4.