voodoo
Concise Oxford English Dictionary © 2008 Oxford University Press:
voodoo/ˈvuːduː/
▶noun a black religious cult practised in the Caribbean and the southern US, combining elements of Roman Catholic ritual with traditional African rites and characterized by sorcery and spirit possession.
– derivatives
voodooism noun,
voodooist noun.
voodooism noun,
voodooist noun.
– origin C19: from Louisiana Fr., from Kwa vodũ.
'voodoo' also found in these Oxford entries:

