misreckon

verb

mis·​reck·​on ˌmis-ˈre-kən 

misreckoned; misreckoning

transitive + intransitive

: to reckon wrongly

… I realized with a pang of dismay that I had misreckoned the time while I lay in the utter darkness of my cell.

—Edgar Rice Burroughs

: to make an incorrect estimate, judgment, or calculation

Yet in this sending of me to the Tower, these dogs who design it misreckon foully.

—W. Outram Tristram

misreckoning noun

plural misreckonings

… I have learned to accept my responsibility and to forgive myself first, then to apologize to anyone injured by my misreckoning.

—Maya Angelou

Word History

First Known Use

1584, in the meaning defined above