dys (means not functioning properly) + peptic.. pepsin..is an ENZYME...WHICH BREAKS DOWN THE FOOD PARTICLES AND HELPS IN DIGESTION,...SO if this enzyme stops functioning..then the problem of INDIGESTION occures.
sounds like THIS PEPSI...I wont drink this pepsi because it may create indigestion to me.
Note that many of the words with roots from body organs mean irritable. Examples: splenetic, spleen, bilious, dyspeptic, livery, and liverish.
dyspeptic = dys + peptic; dys ( means not) + peptic ( pepsin enzyme to help indigestion.