The scourge of the Middle Ages was leprosy. No other disease filled people with equal dread. The words designating this disease vary. Greek léprā is a substantivized feminine adjective (that is, an adjective turned into a noun—a common process:
“Early in life I had noticed that no event is ever correctly reported in a newspaper.”
– George Orwell
The US used to be very hot on June 28, but temperatures on this date have plummeted over the last century.