πταρμός
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)
ὁ,
A sneezing, Hp.Aph.6.13 (pl.), Th.2.49, Pl. Smp.189a, Arist.Pr.961b9; πταρμόν τ' ὄρνιθα καλεῖτε Ar.Av.720, cf. Arist.HA492b6; as a bad omen, Polyaen.3.10.2.