C'est le principe

Epanadiplosis (from Ancient Greek ἐπαναδίπλωσις/epanadíplôsis, from ἐπί/epí, "on", ἀνά/aná, "again", and διπλόος/diplóos, "double", "doubling in succession") is a figure of speech in which the same word is used at the end of a clause as at the beginning of a preceding clause. The opposite figure is anadiplosis. It allows for melodic and rhythmic interplay to suggest emphasis or humor. Epanadiplosis can also be used to emphasize a word, a group of words, or an idea.