Why is it called Maundy Thursday?

The ceremony of washing feet was also referred to as “the Maundy.” Maundy Thursday celebrations also commemorate the institution of the eucharist by Jesus “on the night he was betrayed.” The Prayer Book liturgy for Maundy Thursday provides for celebration of the eucharist and a ceremony of the washing of feet which follows the gospel and homily. Following this service, the altar is stripped and all decorative furnishings are removed from the church