epiploce

from The Century Dictionary.

• noun In rhetoric, a figure by which in a number of successive clauses the last (or the last important) word of one clause recurs as the first of the next; accumulated epanastrophe; in general, climax, especially climax combined with epanastrophe: as, “he not only spared his enemies, but continued them in employment; not only continued them, but advanced them.” See climax.
• noun In prosody, according to the nomenclature of ancient metricians, a group or class of measures comprising as subclasses measures or feet of the same magnitude, but of opposed or contrasted form—that is, feet containing the same number of longs and shorts, but with these following in a reversed or different sequence.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Rhet.) A figure by which one striking circumstance is added, in due gradation, to another; climax; e. g., “He not only spared his enemies, but continued them in employment; not only continued, but advanced them.”

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun rhetoric A figure of speech by which one striking circumstance is added, in due gradation, to another; climax; e.g. "He not only spared his enemies, but continued them in employment; not only continued, but advanced them."