n. & v.
--n.
1. a system by which the beginning, length, and subdivisions of the year are fixed.
2 a chart or series of pages showing the days, weeks, and months of a particular year, or giving special seasonal information.
3 a timetable or programme of appointments, special events, etc.
--v.tr. register or enter in a calendar or timetable etc.
Phrases and idioms:
calendar month (or year) see MONTH, YEAR.
Derivatives:
calendric adj. calendrical adj.
Etymology: ME f. AF calender, OF calendier f. L calendarium account-book (as CALENDS)