miscalendar

verb2

1. •
   To enter an appointment on the wrong date in a schedule.

   • Occasionally , counsel will miscalendar or simply forget about attending a judicial arbitration hearing ( Code of Civil Procedure $ 1141.10. ) and an adverse judgment occurs. — 2006
2. •
   To assign the wrong date to a document.

   • Apparently a reference to the death of Charles II led the 6th baron Monson to miscalendar these letters . — 1989