Pox (noun)

1. A disease characterized by an eruption of small blister-like pustules on the skin.
2. A similar disease in animals, especially cattle and sheep.

Origin:

From middle english pox, poxen, from latin pustula ("pustule, bliste.r")

Examples:

1. He was diagnosed with chicken pox.
2. She had a severe case of small pox.
3. The pox outbreak spread quickly among the population.
4. The cattle had a pox infection that affected their milk production.
5. The pox scars on his face were a reminder of his past illness.