leprousness
/ˈlɛprəsnəs/noun
1A state or quality suggestive of leprosy; taintedness, impurity; contagion.
2The condition of the body produced by leprosy; †the disease itself (obsolete ). rare.
Origin
Late 15th century; earliest use found in George Ripley (d. c1490), alchemist and Augustinian canon. From leprous + -ness.