Also voudouism, vooduism, and VAUDOUISM. [f. prec. + -ISM.] The system of beliefs and practices constituting voodoo; the belief in, or practice of, voodoo as a superstition or form of sorcery.
1866. Daily Union & American (Nashville), 16 Nov., 1/1. Voodooism, from what we can learn, is a superstition little else than the idolatrous religion of Africa.
1871. N. & Q., 4th Ser. VII. 210/2. What is Voodouism?
1880. New Orleans Picayune, 20 May. Finding that no affidavit could be made for voudouism.
1883. Philadelphia Times, No. 3023. 3. His mission is to supplant Voodooism and its kindred superstitions among the colored population.
1897. Church Progr. (St. Louis, U.S.A.), 18 April. A sort of refined Voodooism disguised in Christian phraseology.