origin: unknown, possibly latin
Maundy Thursday a.k.a. "Holy Thursday" is assigned the tradition of washing the feet of the poor (literally or symbolically) as done by Jesus in the bible for his disciples [John 13:3]. No one is certain about the origin of the word though.
Additionally, once a year at this time, the Queen (ruler) of England gives "maundy money" to the elderly in honor of their contributions and community presence.
*Saturday Word: Mistpouffer