ἀμφιθηγής
From LSJ
Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
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.).