misreckon
(verb)
verb
1. (transitive) To add (something) up incorrectly, make a wrong calculation of (an amount etc.).
2. (reflexive, obsolete) To make a wrong calculation, to be in error.
(verb)
1. (transitive) To add (something) up incorrectly, make a wrong calculation of (an amount etc.).
2. (reflexive, obsolete) To make a wrong calculation, to be in error.