[book] A consuetudinary (Med. Lat. consuetudinarius) is the name given to a ritual book containing the consuetudines—forms and ceremonies—used in the service of a particular monastery, religious order, or cathedral. Often, over long periods of time, religious orders would develop unique liturgical approaches and such would be reflected ... Found on http://en.wikipedia.org/wiki/Consuetudinary_(book)
Con`sue·tu'di·na·ry noun ; plural Consuetudinaries A manual or ritual of customary devotional exercises. Found on http://www.encyclo.co.uk/webster/C/145