Quiz: Remember the definition of mal de mer?
"one who practices voodoo," 1870, American English, probably an alteration of voodoo. Meaning "something that causes or brings bad luck" is attested from 1880.
A person or thing that brings bad luck; jinx: A mascot and a hoodoo, meaning one who brings ill fortune, are terms invented in the theater
[1882+; said to be an alteration of voodoo]