Tridentine Passiontide
In the Tridentine Mass, Psalm 42 (43) is omitted at all Masses (unless a feast is observed) until Holy Thursday inclusive, as is the short doxology (Gloria Patri) at the Introit and the Psalm Lavabo at Mass. It is likewise omitted in Psalm 94 at Matins, and the responds at Matins, Prime, Terce, Sext, None, and Compline. Also, the Preface for Lent gives way to the Preface of the Holy Cross unless a festal or votive Mass is celebrated for which a proper preface is assigned.
Passion Week is a name for the week beginning on Passion Sunday, as the Fifth Sunday of Lent was once called in the Roman Rite. In the 1955 Holy Week revisions, Passion Sunday was formally renamed from Dominica Passionis or Dominica de Passione ("Sunday of the Passion") to Dominica I Passionis, "First Sunday of the Passion" or "First Sunday of Passiontide". Palm Sunday, formerly Dominica in Palmis ("Sunday in Palms") became Dominica II Passionis seu in Palmis ("II Sunday of the Passion or in Palms").
Since the revision of the General Roman Calendar in 1969, the name "Passiontide" is no longer used for the last two weeks of Lent, although the former usage is somewhat preserved in the formal name for the Sunday before Easter, "Palm Sunday of the Lord's Passion". However, the Preface called that of the Passion of the Lord I (The Power of the Cross) is used in the fifth week of Lent and the Preface of the Passion of the Lord II (The Victory of the Passion) is used on Monday, Tuesday and Wednesday of Holy Week.
However, even before Pope John XXIII's Code of Rubrics (1960) changed the name of this Sunday from "Passion Sunday" (Dominica de Passione)[6] to "First Sunday of the Passion" (Dominica I Passionis),[7] the liturgical books gave no special name to this week, referring to the days in it simply as "Monday (etc.) after Passion Sunday", which in Pope John XXIII's edition of the Roman Missal became "Monday (etc.) after the First Sunday of the Passion".
In Pope John XXIII's revision, not only the Sunday that had previously had the exclusive name of Passion Sunday but also the following Sunday referred in their names to the Passion. The latter became the "Second Sunday of the Passion or Palm Sunday" (Dominica II Passionis seu in Palmis).[8] The week beginning on that Sunday continued to have a distinctive name, "Holy Week" ("Hebdomada sancta") (previously, "Great Week", "Hebdomada major", but referred to in English as Holy Week), and the first days in it were called "Monday (etc.) of Holy Week", not "Monday (etc.) after the Second Sunday of the Passion or Palm Sunday".
In the 1969 revision, Passiontide ceased to be a separate liturgical season and became the Fifth Week of Lent, followed by Holy Week.
