Umm actually no, you can change its name/description (i.e. "chaos") to anything else under "game interface" (.e. caption-text of almost any ingame button, default messages("not enough lumber"), and text bits like damage type "chaos" or armour types.
Also you will find there all paths of the files and icons that are used in the game interface. Its there where you can change i.e. the hero stats icons, too. You will find out as soon as you see the list.
I don't have the english WE so I cannot give the exact name of where you can find the game interface menue, but its in the same menu as gameplay constants and one item below those.
klovadis