ἀσφάλισμα
From LSJ
εἰ γάρ κεν καὶ σμικρὸν ἐπὶ σμικρῷ καταθεῖο καὶ θαμὰ τοῦτ᾽ ἔρδοις, τάχα κεν μέγα καὶ τὸ γένοιτο → for if you add only a little to a little and do this often, soon that little will become great (Hesiod W&D, 361-362)
English (LSJ)
[φᾰ], ατος, τό,
A pledge, security, BGU248.8 (i A.D.), 601.7 (ii A. D.).
German (Pape)
[Seite 381] τό, Sicherstellung, Pfand, Sp.