Where does the name Kaylani come from

Where does the term "Maundy Thursday" come from? F.R.

According to most explanations, the name “Maundy Thursday” is derived from the Middle High German word “grînen / greinen”, which means something like “complain and cry”. The renowned lexicon for theology and the church also refers to it. This lexicon also derives the term “Kar” week from the Old High German “kara” for “complaint”.

It may be surprising that the two terms should be derived from different times, Old and Middle High German. It is also questionable whether Maundy Thursday as the day of the Last Supper (“caena domini”) should actually be a “day of lament”. Rather, it is a feast day and, in church tradition, also a day on which the penitents were forgiven. That is why other explanations for the derivation of the term have become common today.

Some suspect that the "green" actually refers to the allusion to the color - and the "dies viridium" (literally "Day of the Greens") refers to the fresh, green wood, which is used to remind sinners of the new beginning that after the forgiveness of sins should grow like fresh, green wood in the church. Others associate the green color with a possible liturgical color (white today, but sometimes also green in the past) on that day.

And still others see the green color as an indication of the time of sowing and the beginning of fertility, which begins in spring and can thus also be interpreted theologically as the victory of Easter life. In the Romance languages, Maundy Thursday is more like "Holy Thursday" (e.g. jeudi saint in French) because it is in the "Holy Week".
Michael Kinnen