1. The later name of the pneuma, a melodious and varied prolongation of the Hallelujah.
2. The announcement of the Gospel of the day when taken from the middle of the Gospels, but called initium when the opening words were to follow. On the four days of Holy Week the words "The Passion of our Lord Jesus Christ" replaced the ordinary sequence, or initial.
3. The name for a hymn in meter. (See PROSE); (See SEQUENCES).