maundy UK /ˈmɔːn.di/US /ˈmɑn.di/ noun4 •The ceremony of washing the feet of poor persons or inferiors, performed as a religious rite on Maundy Thursday in commemoration of Christ's washing the disciples' feet at the Last Supper. •The office appointed to be read during the religious ceremony of foot-washing. •(no longer used) The sacrament of the Lord's supper. •(no longer used) A commandment. formsmaundies