κρυφῆ
From LSJ
τὸν αὐτὸν ἔρανον ἀποδοῦναι → pay him back in his own coin, repay him in his own coin, pay someone back in their own coin, pay back in someone's own coin, give tit for tat, pay back in kind
German (Pape)
[Seite 1516] heimlich, wie κρύφα; κρυφῆ δὲ κεῦθε Soph. Ant. 85, öfter; Xen. Conv. 5, 8; Sp.
Greek (Liddell-Scott)
κρῠφῆ: Ἐπίρρ. (κρύπτω) ὡς τὸ κρύφα, «λάθρα, ἀδήλως, κρυπτῶς» (Ἡσύχ.), Σοφ. Ἀντ. 85, 291, 1254, Ξεν. Συμπ. 5. 8· Δωρ. κρυφᾶ ὃ ἴδε.
English (Strong)
adverb from κρύπτω; privately: in secret.
Greek Monotonic
κρῠφῆ: επίρρ. (κρύπ-τω) = κρύβδην, σε Σοφ., Ξεν.
Middle Liddell
κρῠφηδόν, αδϝ. κρύπτω = κρύβδην, Soph., Xen.]