BUCKING n.
The process of breaking up or pulverizing ores. Bucking iron (Mining), a broad-faced hammer, used in bucking or breaking up ores. -- Bucking kier (Manuf.), a large circular boiler, or kier, used in bleaching. -- Bucking stool, a washing block.
BUFF n.
A sort of leather, prepared from the skin of the buffalo, dressed with oil, like chamois; also, the skins of oxen, elks, and other animals, dressed in like manner. "A suit of buff." Shak.