from The Century Dictionary and Cyclopedia
- n. Shell money of the Californian Indians, consisting of circular disks of Pachyderma crassatelloides from a quarter of an inch to an inch in diameter and perforated in the center for stringing.
Sorry, no etymologies found.
California had two kinds of shell money, ullo and hawok.
NID3 also lists hawok, Californian Indian money consisting of shell disks or buttons, and roanoke, from the Virginian Algonquian rawranóke, an alternative term for wampum.