"itching of the skin without visible eruption" [Klein], 1650s, from Latin pruritus, past participle of prurire "to itch" (see prurient). Earlier via Old French in form prurite (early 15c.). Related: Pruritic.
prudish
prune
prunella
prurience
prurient
pruritus
prushun
Prussia
Prussian
pry
psalm