The story
From final + reckoning (“act or occasion of accounting to God after death for one’s conduct in life”).
Etymology from Wiktionary, CC BY-SA 4.0.
final reckoning
fin·al reck·on·ingToday it means: Synonym of judgement day (“the final trial of all humankind, both the living and the dead, by God expected to take place at the end of the world, when each is rewarded or punished according to their merits”). Full definition →