calender vs schedule

calender

noun
  • A machine, used for the purpose of giving cloth, paper etc., a smooth, even, and glossy or glazed surface, by cold or hot pressure, or for watering them and giving them a wavy appearance; it consists of two or more cylinders revolving nearly in contact, with the necessary apparatus for moving and regulating. 

  • One who pursues the business of calendering. 

  • One of a wandering, mendicant Sufic order of fantastically dressed or painted dervishes, founded in the 13th century by an Arab named Yusuf. 

verb
  • To press between rollers for the purpose of making smooth and glossy, or wavy, as woolen and silk stuffs, linens, paper etc., as in a calender. 

schedule

verb
  • To add a name to the list of people who are participating in something. 

  • To plan an activity at a specific date or time in the future. 

  • To create a time-schedule. 

  • To admit (a person) to hospital as an involuntary patient under a schedule of the applicable mental health law. 

noun
  • A written or printed table of information, often forming an annex or appendix to a statute or other regulatory instrument, or to a legal contract. 

  • A serial record of items, systematically arranged. 

  • One of the five divisions into which controlled drugs are classified, or the restrictions denoted by such classification. 

  • An allocation or ordering of a set of tasks on one or several resources. 

  • A procedural plan, usually but not necessarily tabular in nature, indicating a sequence of operations and the planned times at which those operations are to occur. 

How often have the words calender and schedule occurred in a corpus of books? (source: Google Ngram Viewer )