Ian Hislop referred to the 'illth' during his programme on banking last night.
It's a great word.
According to Websters it means:
: the condition of being economically unprosperous or miserable <the glaring disparity between the state's natural wealth and its human illth — Christian Century>
or: something that produces or is symptomatic of illth <much of the goods on our shelves is wealth rather than illth —Nation>