hyperinflation

noun

Etymology: From hyper- + inflation.

1. Excessive inflation.

   “hyperinflation of the lungs”

2. A very high rate of inflation.

   “Even though ten years elapsed between the German hyperinflation of 1923 and the seizure of power by Hitler, it is often suggested that the two events are causally related.”

   “Only inconvertible paper currencies can be expanded rapidly without limit to generate hyperinflation.”