valedictory

Valedictory addresses delivered by earnest young valedictorians at high school and college graduations are as much a sign of spring in the United States as baseball games and cookouts. Though we don't know where the first valedictory address was given, we do know that the word was an institution at some colleges in the U.S. by the mid-1700s. English speakers and writers have also used "valedictory" in non-academic settings since the mid-1600s. Since a valedictory speech is given at the end of an academic career, it is perfectly in keeping with the meaning of its Latin ancestor, valedicere, which means "to say farewell."