ποδοῖϊν

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)

Source

French (Bailly abrégé)

gén.-dat. duel homér. de πούς.

Russian (Dvoretsky)

ποδοῖϊν: эп. gen. и dat. dual. к πούς.

Dutch (Woordenboekgrieks.nl)

ποδοῖϊν ep. gen. dat. dual. van πούς.