"Spendthrift"

       I recently spent a lot of money in only two days and called myself a "spendthrift."  It's a term I always feel funny using because it seems to me it should mean "thrifty."

       But "thrift," I find out, once meant "prosperity"...as in "thrive"... not "frugality," and that earlier meaning hangs on in "spendthrift" too.  In other words, "spendthrift" means "spending one's prosperity," wasteful, wreckless spending.