A medical condition marked by a lack of or deficiency in digestion; the inability to digest food properly.
From Greek 'a-' (without, lack of) + 'pepsis' (digestion) + '-ia' (medical condition suffix). The root 'pepsic' comes from 'peptein' (to digest), which ultimately relates to Proto-Indo-European 'pek-' (to cook).
The Greek root 'pepsin' (the digestive enzyme) comes from the same source as 'apepsia'—so these words are literally about cooking or breaking down food, which is what digestion does at a molecular level.
Complete word intelligence in one call. Free tier — 50 lookups/day.