ἕσσον

From LSJ

ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)

Source

French (Bailly abrégé)

impér. ao. Act. de ἕννυμι.

Russian (Dvoretsky)

ἕσσον: эп. imper. aor. к ἕννυμι.