Ritual foot washing in Christianity

"Maundy (from Old French mandé, from Latin mandatum meaning "command"), or the Washing of the Feet, or Pedelavium, is a religious rite observed by various Christian denominations. The Latin word mandatum is the first word sung at the ceremony of the washing of the feet, "Mandatum novum do vobis ut diligatis invicem sicut dilexi vos", from the text of John 13:34 in the Vulgate ("I give you a new commandment, That ye love one another as I have loved you", John 13:34). This is also seen as referring to the commandment of Christ that believers should emulate his loving humility in the washing of the feet (John 13:14–17). The term mandatum (mandé, maundy), therefore, was applied to the rite of foot-washing on the Thursday preceding Easter Sunday, called Maundy Thursday." - (en.wikipedia.org 26.02.2022)