Consider the doubling of single words to form LinkPatterns. Although it's not common practice, it can be found at the heart of Wiki. See: WikiWiki, CategoryCategory.
Example: JunitJunit (for Junit, instead of JavaUnit)
Contrast with these (less-beautiful) single-word examples: WiKi, LeGo, LaLa, and WaWa. They are all ugly.
Actually, Neither WikiWiki nor CategoryCategory is a DoubleWordLinkPattern.
Are there really any instances of DoubleWordLinkPattern?
The instances above are