zoster Look up zoster at Dictionary.com
kind of seaweed, c.1600, Latin, from Gk. zoster “girdle,” from zonnynai (see zone). Meaning “shingles” is from 1706; in the literal sense, “a belt or girdle, especially for men,” from 1824.
shingles Look up shingles at Dictionary.com
late 14c., "inflammatory disease of the skin," from M.L. cingulus (loan-translation of Gk. zoster "girdle"), variant of L. cingulum "girdle," from cingere "to gird" (see cinch). The inflammation often extends around the middle of the body, like a girdle.