Jack Levine's three volume listing of Websterian words grouped according to their letter-patterns (such as EXCESS and BAMBOO) is an almost inexhaustible treasure-trove of linguistic curiosa. In this article, we focus upon one-thirtieth of his total corpus: the 15,054 eight-letter words in which two letters appear twice each and four letters appear once each.
Eckler, A. Ross
"Eight-Letter Two-Pair Words,"
Word Ways: Vol. 9
, Article 5.
Available at: https://digitalcommons.butler.edu/wordways/vol9/iss4/5