almanac

[awl-muh-nak] /ˈɔl məˌnæk/
noun
1.
an annual publication containing a calendar for the coming year, the times of such events and phenomena as anniversaries, sunrises and sunsets, phases of the moon, tides, etc., and other statistical information and related topics.
2.
a publication containing astronomical or meteorological information, usually including future positions of celestial objects, star magnitudes, and culmination dates of constellations.
3.
an annual reference book of useful and interesting facts relating to countries of the world, sports, entertainment, etc.
Origin
1350-1400; Middle English almenak < Medieval Latin almanach < Spanish Arabic al the + manākh calendar < ?
Examples from the web for almanac
  • He still consults his almanac for the moon's phases before planting his half-acre garden each spring.
  • Pick cities in each type of climate and then look up the weather data in a statistical abstract or almanac.
  • Another risk was losing the almanac during one's travels, perhaps left behind on a shop counter or on a bench at a local tavern.
British Dictionary definitions for almanac

almanac

/ˈɔːlməˌnæk/
noun
1.
a yearly calendar giving statistical information on events and phenomena, such as the phases of the moon, times of sunrise and sunset, tides, anniversaries, etc Also (archaic) almanack
Word Origin
C14: from Medieval Latin almanachus, perhaps from Late Greek almenikhiaka
Word Origin and History for almanac
n.

late 14c., attested in Anglo-Latin from mid-13c., via Old French almanach or Medieval Latin almanachus, of uncertain origin. It is sometimes said to be from a Spanish-Arabic al-manakh "calendar, almanac," but possibly ultimately from Late Greek almenichiakon "calendar," which is said to be of Coptic origin.

This word has been the subject of much speculation. Originally a book of permanent tables of astronomical data; one-year versions, combined with ecclesiastical calendars, date from 16c.; "astrological and weather predictions appear in 16-17th c.; the 'useful statistics' are a modern feature" [OED].