cilice n.

"haircloth shirt worn next to the skin by monks and others to mortify the flesh," Old English cilic, from Latin cilicium "a covering," a type of coarse garment (used especially by soldiers and sailors), originally one of Cilician goat hair, from Greek kilikion "coarse cloth," from Kilikia "Cilicia" in Asia Minor. By tradition in Greek mythology the place was named for Cilix, a son of the Phoenician king Agenor.