pityriasis

From New Latin pityriasis, from Koine Greek πιτυρίασις (pituríasis), from Ancient Greek πίτῡρον (pítūron, “bran”).

pityriasis (plural pityriases)

1. (pathology) Any of several varieties of skin diseases characterized by the shedding of flakes or scales, such as dandruff. [from 17th c.]
   • 1994, Louis de Bernières, Captain Corelli's Mandolin, Minerva 1995, p. 137:

     ‘This patch is pityriasis, you see, it's coffee-coloured. The things we use for the other troubles will cure that too.’