Herman Melville's Moby Dick is prefaced by a section entitled Extracts, consisting of eighty quotations about whales and the author's acknowledgement of the efforts of a Sub-Sub-Librarian, referred to subsequently as a "poor devil of a Sub-Sub". Despite the impeccable credentials of this source, neither word appears in Webster's Second or Third.
Wolpow, Edward R.
Word Ways: Vol. 11
, Article 6.
Available at: http://digitalcommons.butler.edu/wordways/vol11/iss3/6