βάτω

From LSJ

γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules

Source

French (Bailly abrégé)

3ᵉ sg. impér. ao.2 de βαίνω.

Russian (Dvoretsky)

βάτω: (ᾱ) Soph. 3 л. sing. imper. aor. 2 к βαίνω.