λάθρᾳ
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν 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
German (Pape)
[Seite 6] heimlich, theils absol., Soph. O. R. 386, οὑπιβουλεύων λάθρᾳ, 618, θυραῖος ἦλθον ὡς ὑμᾶς λάθρᾳ, Tr. 530; Ggstz φανερῶς, Plat. Conv. 182 d; Xen. Cyr. 7, 4, 4 u. Folgde; – theils c. gen., λάθρᾳ δὲ μητρὸς καὶ πατρὸς πορεύομαι, Soph. O. R. 787, heimlich von Vater u. Mutter, von ihnen unbemerkt, wie Καδμείων λάθρᾳ, O. C. 355, wie Eur. Andr. 310; λάθρᾳ τῶν στρατιωτῶν πέμπων Xen. An. 1, 3, 8. S. λάθρη.
