An ananym is a name which has the letters reversed. This is often done for anonymity, or to create a new name with some information encrypted in it, as with a parent naming a child.
Examples are:
Theodor Geisel (better known as Dr. Seuss) who published some children's books under the name Theo. LeSieg.
Filmmaker and Star Wars creator George Lucas, whose name was modified into "Egroeg Sacul", a minor character mentioned in the Star Wars-themed ride Star Tours.
In many works inspired by Bram Stoker's novel Dracula, the eponymous Count Dracula goes by the ananym "Alucard".
In Dylan Thomas' radioplay "Under Milk Wood", the name of the Welsh town (hence the double L) where the story pans out is llareggub, which when reversed spells 'Bugger all'.
