This is a concept for Xygon, City in the Clouds, Mecuniv's home.
Xygon got it's name after the Great War. It roughly translates to "Escaped City." I say roughly because the language of the Masters has no literal translation. Everything is conveyed though feelings. The X is symbolic of dishonor, but the Y softens it with it's symbolism of defense and passivity. See my previous post for more information on the language.
The reason for this name is due to the fact that, during the Great War, the people of the city retreated from the war. In order to do so, they ripped the city from the ground and it now floats hovering, the planet rotating beneath it. From time to time, the location of the city still changes, perhaps to keep potential aggressors away.
The city that is now Xygon, as it's name has long been lost, was at one time a bustling commercial trade center.
