/ ˌmɪlɪˈneəriən; NAmE -ˈner-/ noun
a member of a religious group which believes in a future age of happiness and peace when Christ will return to Earth
► mil·len·ar·ian adjective
► mil·len·ar·ian·ism / -ˈneəriənɪzəm; NAmE -ˈner-/ noun [ U ]
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WORD ORIGIN
mid 17th cent.: from late Latin millenarius (having a thousand, based on Latin mille thousand) + -an .