Many years ago, Leigh Mercer constructed several dictionaries to aid the aspiring palindromist. In these dictionaries, he listed various words which contain interior reversals; for example, PRETTIFY contains the word FITTER. The value of such dictionaries lies in the arrangements of the words for quick and easy access; one very useful method is to arrange all the words in reverse alphabetical order, sorted out by the number of hanging letters they contain. Thus, Y FITTER P, with a single hanging letter in front, appears toward the end of one dictionary. A second dictionary lists reversed words with double hanging letters, and a third, words with multiple hanging letters.
Bergerson, Howard W.
"On Composing Palindromic Poetry,"
Word Ways: Vol. 5
, Article 15.
Available at: http://digitalcommons.butler.edu/wordways/vol5/iss1/15