From from {{term|calendarium||account book}}, from {{term|calendae||the first day of the month}}, from {{term|calare||to announce solemnly, to call out (the sighting of the new moon)}}, from .
Category:Time
ar:calendar zh-min-nan:calendar el:calendar fr:calendar fy:calendar gl:calendar ko:calendar hy:calendar io:calendar id:calendar it:calendar kk:calendar lo:calendar hu:calendar ja:calendar pl:calendar ru:calendar fi:calendar ta:calendar th:calendar vi:calendar zh:calendar