Maundy Thursday is an alternate name for Holy Thursday, the first of the three days of solemn remembrance of the events leading up to and immediately following the crucifixion of Jesus. The English word "Maundy" comes from the Latin mandatum, which means "commandment." 

As recorded in the gospels, on his last night before his betrayal and arrest, Jesus washed the feet of his disciples at the Last Supper and then gave them a new commandment to love one another as he had loved them.  Our Maundy Thursday service will likewise include a symbolic "foot washing" and communion service.