to soften, ripen or change, by means of heat:
I.of the sun, to ripen fruit, Od.; cf. πεπαίνω.
II.by the action of fire, to cook, dress, bake, Hdt., Ar.:—Pass., Hdt.:—Mid., πέσσεσθαι πέμματα to cook oneself cakes, id=Hdt.
III.of the stomach, to digest, like Lat. concoquere, Arist.