noun
or ra·son ˈräˌsȯn
( -s )
Etymology: Middle Greek rhason, a napless woolen cloth, rhason, perhaps from Latin rasus, past participle of radere to scrape, scratch, shave — more at rat
Eastern Church
1. : an ecclesiastical garment resembling the cassock
2. : a long loose cloak worn over the rhason — called also exorhason