Epizeuxis
/ˌɛpɪˈz(j)uːksɪs/
"Epizeuxis" in a Sentence (3 examples)
An Epizeuxis twice a word repeats, And graces thus the theme on which it treats.
Wikipedia weds this ranging interest to the kind of pertinence where Larry David's “Pretty, pretty good!” is given as an example of rhetorical epizeuxis.
'O horror, horror, horror', Macduff cries, his epizeuxis reflecting a lack in the symbolic order itself.