Plural of apocalypse; plural of revelation or disclosure of something hidden; also refers to catastrophic events or the end of the world.
From Greek 'apokalypsis' (uncovering, revelation), from 'apo-' (away from) + 'kalyptein' (to cover). Originally meant 'revealing' before it meant 'catastrophe.'
The original Greek meaning of apocalypse was simply 'revelation' or 'unveiling'—it didn't mean doom at all, which is why apocalyptic literature was often about divine truth being revealed rather than the world ending.
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