Epistrophe (Greek: ἐπιστροφή, "return") is the repetition of the same word or words at the end of successive phrases, clauses or sentences.
It is a figure of speech and the counterpart of anaphora.
It is an extremely emphatic device because of the emphasis placed on the last word in a phrase or sentence.
Greek epistrophe: "a word coined by Plato as a goal of philosophical education and the term adopted by early Christians for conversion".
[2] — Shakespeare, The Tempest (4.1.108–109; 116–17) In the beginning of this quotation by Barack Obama epistrophe is evoked, while the latter part makes use of anaphora.