μηνολόγιον

Greek (Liddell-Scott)

μηνολόγιον: τό, ἡμερολόγιον, Στουδ. 28C, τὸ Ἐκκλ. ἔτος ἄρχεται ἀπὸ τῆς πρώτης Σεπτεμβρίου.

Wikipedia EN

Menologium (English: /mɛnəˈloʊdʒiəm/), also written menology, and menologe, is a service-book used in the Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite.