It has been known for at least fifteen years that certain words can be translated into other words by shifting each letter the same number of steps along the alphabet -- thus, the letters of CHEER shifted forward seven steps to yield JOLLY, and the letters IRK shifted thirteen steps, VEX. Strangely, a little logological research has been done in this area; this article attempts to show what can be done by hand, and how much more might be accomplished by digital computer.
Eckler, A. Ross
Word Ways: Vol. 12
, Article 17.
Available at: http://digitalcommons.butler.edu/wordways/vol12/iss4/17