κεχηνέναι

From LSJ

μηδὲν κοτυλίζειν, ἀλλὰ καταπάττειν χύδην → not to sell by the cupful, but to dole out indiscriminately | not to sell by retail but wholesale

Source

Greek > English (Woodhouse Verbs Reversed)

(see also χάσκω): gasp with astonishment