(also less frequent al·man·ack ) / ˈɔːlmənæk; NAmE ; ˈæl-/ noun
1.
a book that is published every year giving information for that year about a particular subject or activity
2.
a book that gives information about the sun, moon, times of the tides (= the rise and fall of the sea level) , etc. for each day of the year
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WORD ORIGIN
late Middle English : via medieval Latin from Greek almenikhiaka , of unknown origin.