pepsis

pepsis [πέψις] , digestion (of food and drink); b (spec.) digestion occurring in the stomach and intestines, ‘first digestion’ (of three in medieval physiology). pisis est cibi et potus digestio Gloss. Poems 103n. 19; ~is interpretatur degestio Alph. 144.  b ~is ‥ ponitur similiter pro prima digestione, inde peptica degestio et anapeptica, i. recta degestio Alph. 144.