noun
almanac
AWL-muh-nak/ˈɔːlmənæk/
A yearly reference book of calendar information and useful facts.
The open almanac combines a calendar, lunar phases, and tables of figures.

Etymology
The Latin ancestor named a book of astronomical tables, but its deeper origin is uncertain. Such books developed into yearly calendars, with useful statistics added later to produce the modern annual reference book.
In context
He turned up the almanac, but the dates did not fit in.
More examples
- An old almanac lists the dates of eclipses.
- The library keeps historical almanacs in its reference collection.
- She compares the weather records printed in two almanacs.
Forms
almanac · almanacs
Similar words
- yearbook
- Usually reviews a year's events rather than supplying calendar reference data.
- calendar
- Lists dates without necessarily providing the additional reference material.