eschaton
The apocalypse; the approach of Christ’s reign immediately preceding the end of the world; a conception of or circumstance pertaining to this era.
Near-synonyms: Revelation, Armageddon
An end or fulfilment of history in general.
He, too, constructs a philosophical history towards an eschaton. In a peculiarly inverted manner he is among the believers in progress—the goal being the undoing of the things done.
Where it comes from
Borrowed from Ancient Greek ἔσχατον (éskhaton, “last thing”), from the neuter singular of ἔσχατος (éskhatos, “last”).
Adapted from the Wiktionary entry eschaton (CC BY-SA 4.0).