ἀμφιθηγής
From LSJ
οὕτω τι βαθὺ καὶ μυστηριῶδες ἡ σιγὴ καὶ νηφάλιον, ἡ δὲ μέθη λάλον → silence is something profound and mysterious and sober, but drunkenness chatters
English (LSJ)
ές,
A sharpened on both sides, two-edged, ξίφος S.Ant. 1309 (lyr.).
German (Pape)
[Seite 139] zweischneidig, σάγαρις Philipp. 6 (VI, 94).
Spanish (DGE)
-ές de doble filo σάγαρις AP 6.94 (Phil.).