
1) Eastern Christian hymn 2) Liturgy of the Hours
Found on
https://www.crosswordclues.com/clue/menaion

The Menaion (Μηναῖον; Slavonic: Минеѧ, Minéya, `of the month`) is the liturgical book used by the Eastern Orthodox Church containing the propers for fixed dates of the calendar year, i.e. entities not dependent of the date of Easter. The Menaion is the largest volume of the propers for the Byzantine Rite and is used at nearly all t.....
Found on
http://en.wikipedia.org/wiki/Menaion

• (n.) A work of twelve volumes, each containing the offices in the Greek Church for a month; also, each volume of the same.
Found on
http://thinkexist.com/dictionary/meaning/menaion/

(from the article `church year`) The schedule of fixed holy days in the Menaion (liturgical service book for each month) begins on September 1, the New Year`s or Indiction Day of the ...
Found on
http://www.britannica.com/eb/a-z/m/70
Me·na'ion noun ;
plural Menaia (-yå). [ New Latin , from Greek ... monthly.]
(Eccl.) A work of twelve volumes, each containing the offices in the Greek Church for a month; also, each volume of the same.
Shipley. Found on
http://www.encyclo.co.uk/webster/M/46
No exact match found.