misreckoning

noun

noun

Etymology From misreckon + -ing.

A false reckoning; a miscalculation.

And if by such a meane we might provide for times to come, appoynting that after the revolution of such or such a number of yeares, that extraordinary day might for ever be eclipsed; so that our misreckoning should not henceforward exceede foure and twenty houres.1603, Michel de Montaigne, translated by John Florio, Essays, III.11:

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