kalendar

noun
  1. An archaic spelling of the word 'calendar', which refers to a system for organizing days for social, religious, commercial, or administrative purposes. It is typically a chart or series of pages showing the days, weeks, and months of a particular year, or giving particular seasonal information. noun
    The monk carefully inscribed the holy days into the kalendar.
    In medieval times, the kalendar was an essential tool for keeping track of religious festivals.