Delivering a VALEDICTORY is a speech given at the end of an event, such as a graduation ceremony. It is usually given by a student or a faculty member and is meant to be a farewell address to the graduating class. The term 'VALEDICTORY' comes from the Latin phrase 'vale dicere, ' which means 'to say farewell.' The crossword solution ORATE is a verb meaning to speak in a formal or impressive manner. Therefore, the term DELIVER A VALEDICTORY can be summarized as giving a formal farewell speech at the end of an event.