society > faith > artefacts > book (general) > service book (general) > [noun] > concerning sacraments (3)
Christian Church. = manual, n. 1a. Now historical.
Christian Church. A book containing the forms to be observed by priests in the administration of the sacraments, etc. Now historical.
An early form of office-book in the Western Church, containing the rites and prayers belonging to the several sacraments.