The original meaning for the word came from a legendary DotA player known as Ra'akhs, who played DotA in 13th century Persia (c. 1250-1260). He had a tactic where he would run behind the enemies towers and start attacking their throne. In order to rebalance DotA and hinder agressive tactics, Dr. Anthony Isleworth, an Oxford physicist, introduced buildings behind the base towers of the teams and named them The Shrine of Ra'akhs.
Several centuries later, in 1842 Georges Sand, the infamous and secretive letter writer, was playing DotA with close friend Frederick Chopin, the poet of the piano, and Chopin backdoored her Shrine of Ra'akhs using clinkz. Georges Sand, in a flourish of continentality, struggled to pronounce the Arabic word for 'shrine', and decided express the long phrase 'Shrine of Ra'akhs' simply by Rax, and in the process invented the letter x.
found this hon DotA forums, nearly lol'd myself into a coma, and decided the HoN ommunity needed to see this.