ὄπτ-ησις · opt-ēsis — LSJ
roasting, frying, σπλάγχνων, opp. κρεῶν ἕψησις, SIG 57.34 (Milet. v B. C.), cf. Hp. Aff. 49, Arist. Mete. 381a23.
baking, of bread, J. AJ 3.10.7, Ath. 3.109c (pl.); of pottery, BGU 1143.17 (i B. C.), Luc. Prom.Es 2.
overheating of humours, Gal. 13.335, 19.580.