Trizeuxis

Trizeuxis refers to the rhetorical device of using three clauses or phrases in succession, each ending with the same word. It's a type of epiphora (also known as epistrophe) limited to instances of three clauses. The effect can be to emphasize a particular concept or feeling, building in intensity or resonance through repetition. This repetition creates a sense of closure or finality at the end of the series.