σφέλας
From LSJ
ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
English (LSJ)
τό,
A footstool, Od.18.394: Ep. pl. σφέλα 17.231; dat. σφέλαϊ A.R.3.1159. II pedestal of a statue, Schwyzer 760 (Delos, vi B.C.). III hollow block of wood, for putting anything into, Nic.Th.644.
Greek (Liddell-Scott)
σφέλας: τό, ὑποπόδιον, Ὀδ. Σ. 394˙ Ἐπικ. πληθ. σφέλα Ὀδ. Ρ. 231˙ δοτ. σφέλαϊ Ἀπολλ. Ρόδ. Γ. 1169. ΙΙ. ἡ βάσις ἀγάλματος, Ἐπιγρ. Δήλ. ἐν τῇ Συλλ. Ἐπιγρ. 10. ΙΙΙ. κοῖλον τεμάχιον ξύλου ὡς θήκη χρησιμεῦον, Νικ. Θηρ. 644.