SACRAMENTARY n.
An ancient book of the Roman Catholic Church, written by Pope Gelasius, and revised, corrected, and abridged by St. Gregory, in which were contained the rites for Mass, the sacraments, the dedication of churches, and other ceremonies. There are several ancient books of the same kind in France and Germany.…
SANCTUS n. 2 definitions
A part of the Mass, or, in Protestant churches, a part of the communion service, of which the first words in Latin are Sanctus, sanctus, sanctus [Holy, holy, holy]; -- called also Tersanctus.