ἀμφίσβαινα
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)
ης, ἡ, (βαίνω) kind of
A serpent, supposed to go either forwards or backwards, A.Ag.1233, Ar.Fr.18 D.; ἀ. ἀμφίκρηνος, δίστομος, Nic.Th.372, Nonn.D.5.146. II ἀ. φλέβες veins connecting the breast and generative organs, Pall.in Hp.2.103D.
German (Pape)
[Seite 143] ἡ, eine Art Schlangen, die vor- und rückwärts gehen kann (ἑκατέρωθεν βαίνων), Aesch. Ag. 1266; Nic. Th. 372; Nonn. D. 5, 146.