Repeating the root of a word is a way to signal
different meaning and to link two ideas more strongly than would occur
otherwise. Because the reader must slow down to register and consider
the link, be sure you're not just being cute.
Far from discrediting liberalism, corruption is discredited
by it.
A nice turn—from discrediting to discredited.
It was a dramatic, not to say melodramatic, story.
Whatever it was, it caused 96% of marine species to
disappear and dinosaurs to appear.
Book or music or painting, play or film, what
arrests us and awes us is the realization that the inexpressible
is arising from what is being expressed.