English
Millerite
From Miller + -ite.
A compound of Miller + -ite
Today it means
noun One who followed the calculations of William Miller or his followers that the world would end on October 22, 1844; when it did not, the Great Disappointment occurred. The subsequent denominations his movement spawned include the Adventists, Jehovah's Witnesses and the (Campbellite) Restorationists.
Language periods are conventional ranges, not dates for this word.
Etymograph / Millerite