nCassioberryThe fruit of the Viburnum obovatum, a shrub which grows from Virginia to Florida.
Century Dictionary and Cyclopedia
ncassioberryA shrub, Viburnum obovatum, of the southeastern United States, with shining evergreen leaves and black, edible drupes. The yapon, Ilex vomitoria, which somewhat resembles it, is called cassio-berry bush in South Carolina, and that name has been applied to the smooth winterberry, Ilex lævigata.
Webster's Revised Unabridged Dictionary
NL. cassine, from the language of the Florida Indians