millennialism
[mi-len-ee-uh-liz-uh m]
- a belief in the millennium.
Origin of millennialism
Also called mil·le·nar·i·an·ism [mil-uh-nair-ee-uh-niz-uh m] /ˌmɪl əˈnɛər i əˌnɪz əm/.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for millennialism
n.
1906, from millennial + -ism.
Online Etymology Dictionary, © 2010 Douglas Harper