holystone noun & verb.
['hǝʊlɪstǝʊn] E19.[Prob. from HOLY adjective + STONE noun, perh. so called because used while kneeling.]A. noun. A piece of soft sandstone used for scouring the decks of ships.
E19.b. verb trans. Scour with a holystone.
E19.■ T. Mo He is on a deck holystoned white as any man-of-war's. [TahlilGaran] English Dictionary ▲