The Greek source noun means disclosure. Its verb combines a removing prefix with covering. Latin and French carried it toward English.
The deeper origin of the covering verb is uncertain. The component task omits the noun suffix and compressed French/English stages.
Sources
- Merriam-Webster: apocalypse
The uncovering verb underlies the noun; the deeper root is uncertain.
- Merriam-Webster: apo-
The prefix expresses removal.
- Online Etymology Dictionary: apostrophe
Apostrophe: Greek *apostrophos* “turning away”, from *apo* “off, away from” + *strephein* “to turn”