πέψις, εως,
Ionic dialect ιος, ἡ, (πέσσω) softening, ripening, or changing by means of heat [[(4th c.BC: Aristoteles Philosophus “Meteorologica” 379b18, “GA” 775a17, “Pr.” 907a18): ] Refs 4th c.BC+]
__I of fruit, πέπανσίς ἐστιπ. τις [[ [prev. author] “Mete.” 380a11, compare 4th-3rd c.BC: Theophrastus Philosophus “Historia Plantarum” 1.12.2, 5.1.3 (_plural_). ] Refs 4th c.BC+]
__II cooking of food, including both ἕψησις and ὄπτησις (cooking by water or by dry heat), [[ 4th c.BC: Aristoteles Philosophus “Meteorologica” 380b13, 381a23 ] Refs 4th c.BC+]; κλίβανος καιόμενος εἰς π. [[ LXX.Hos.7.4. ] LXX]
__II.b largess of cooked food, [[ Inscriptiones Graecae ad res Romanas pertinentes 4.1637 (from Philadelphia). ] Refs]
__II.2 of wine, fermentation, [[ 1st-2nd c.AD: Plutarchus Biographus et Philosophus 2.656a. ] Refs 1st c.AD+]
__III in Medicine texts, digestion of food, ὁμοία ἑψήσει [[ 4th c.BC: Aristoteles Philosophus “Meteorologica” 381b7, compare “PA” 650a4, +others; τὰ τῆς π. ὄργανα 2nd c.AD: Galenus Medicus “περὶ φυσικῶν δυνάμεων - Scripta Minora” 1.10; π. καὶ ἀνάδοσις 3rd c.AD: Porphyrius Tyrius Philosophus “de Abstinentia - Porphyrii Opuscula” 1.45: _plural_, 2nd c.BC: Agatharchides Geographus 77. ] Refs 4th c.BC+]
__III.2 ripening, 'concoction' of acrid humours, [[ 5th c.BC: Hippocrates Medicus “περὶ ἀρχαίης ἰητρικῇς” 18, compare 1st-2nd c.AD: Plutarchus Biographus et Philosophus 2.102a. ] Refs 5th c.BC+]