In reference to Judas Iscariot’s intent to betray Jesus, formed on … Wednesday [in Holy Week], the day is sometimes called “Spy Wednesday”. … (The word spy, as used in the term, means “ambush, ambuscade, snare”.
https://infogalactic.com/info/Holy_Wednesday
Most scholars[citation needed] agree that the English word Maundy in that name for the day is derived through Middle English and Old French mandé, from the Latin mandatum, the first word of the phrase “Mandatum novum do vobis ut diligatis invicem sicut dilexi vos” (“A new commandment I give unto you, That ye love one another; as I have loved you”), the statement by Jesus in the Gospel of John 13:34 by which Jesus explained to the Apostles the significance of his action of washing their feet. … Others theorize that the English name “Maundy Thursday” arose from “maundsor baskets” or “maundy purses” of alms which the king of England distributed to certain poor at Whitehall before attending Mass on that day. Thus, “maund” is connected to the Latin mendicare, and French mendier, to beg.
https://infogalactic.com/info/Maundy_Thursday
“Tre Ore” (Three Hours) Devotion
https://infogalactic.com/info/Three_Hours'_Agony
The Three Hours’ Agony, “Tre Ore”. The Great Three Hours, or Three Hours’ Devotion is a service held … on Good Friday from noon till 3 o’clock to commemorate the Passion of Christ.
It may include meditation on the seven sayings of Jesus on the cross,[1] and often occurs between the Stations of the Cross at noon and the Liturgy of the Lord’s Passion at 3PM, or between 6PM and 9PM.[2]
( https://infogalactic.com/info/Sayings_of_Jesus_on_the_cross )
The Jesuit priest Alphonsus Messia (died 1732) is said to have devised this devotion in Lima, Peru. It was introduced to Rome around 1788 and spread around the world. In 1815, Pope Pius VII decreed a plenary indulgence to those who practise this devotion on Good Friday.[3]
Tenebrae
https://infogalactic.com/info/Tenebrae
Tenebrae (Latin for “shadows” or “darkness”) is a Christian religious service celebrated in the Holy Week within Western Christianity, on the evening before or early morning of Maundy Thursday, Good Friday, and Holy Saturday. Tenebrae is distinctive for its gradual extinguishing of candles while a series of readings and psalms is chanted or recited.
The Roman rite of Tenebrae was widely observed in the Catholic Church [in the past]
Discuss other topics related to Holy Week?