In Lesson 12-2, we introduced the prefix copr(o)-. This prefix is originated from Greek korpros, meaning feces.
The suffix -lith is also originated from Greek lithos, meaning stone. We will see this suffix again in Lesson 19-2.
When we put these two together, we have coprolith. Chronic constipation or some disease will result in the formation of coprolith. We can avoid coprolith formation by drinking adequate amount of water everyday. Exercise will also help.