*moration*

n. [ L. commemoratio. ] 1. The act of commemorating; an observance or celebration designed to honor the memory of some person or event. [ 1913 Webster ]

This sacrament was designed to be a standing commemoration of the death and passion of our Lord. Abp. Tillotson. [ 1913 Webster ]

The commonwealth which . . . chooses the most flagrant act of murderous regicide treason for a feast of eternal commemoration. Burke. [ 1913 Webster ]

2. Whatever serves the purpose of commemorating; a memorial. [ 1913 Webster ]

Commemoration day, at the University of Oxford, Eng., an annual observance or ceremony in honor of the benefactors of the University, at which time honorary degrees are conferred. [ 1913 Webster ]