8.apocalypse | Etymology, origin and meaning of apocalypse …
apocalypse (n.) late 14c., ’revelation, disclosure,’ from Church Latin apocalypsis ’revelation,’ from Greek apokalyptein ’uncover, disclose, reveal,’ from apo ’off, away from’ (see apo-) + kalyptein ’to cover, conceal,’ from PIE root *kel-(1) ’to cover, conceal, save.’ The Christian end-of-the-world story is part of the revelation in John of Patmos’ book ’Apokalypsis’ (a title rendered into ...