The name Agamemnon is composed of three consecutive sets of three letters in which the first and third letters in each triplet is the same. There are a handful of such words in the Merriam-Webster Unabridged Dictionary (Second or Third Editions): AGAMEMNON, MIMULUSES, ILICACAEAE, SUSUHUNAN, COCCACEAE and the doubtful MIMICISMS ( morbid tendencies to mimicry ). A search for analogous twelve-letter words in Levine\u27s pattern word lists proved unsuccessful, although a few one-letter misses did surface: IMITATRESSES, IRIDODONESIS (and its listed plural), VIVIDIALYSIS (and its inferred plural)
