Webster's Revised Unabridged Dictionary · 1913

Leprous

Leprous (-rūs) , adjective

[Old French leprous, lepros, French lépreux, from Latin leprosus, from lepra, leprae, leprosy. See Leper.]

1.
Infected with leprosy; pertaining to or resembling leprosy.
His hand was leprous as snow. — Ex. iv. 6
2.
(Nat. Hist.) Leprose.