Answer:
At the core of Inauguration Day is a legal procedure: the oath of office, which is required of the president in order to serve. But though the oath could be a small, procedural affair, it never quite has been. Even at the very first inauguration, George Washington, after taking the oath—and becoming the first democratically elected head of state in modern history—addressed the crowds that had gathered under the balcony of Federal Hall in New York City.
Explanation:
With derivational suffixes, the new word has a new meaning, and is usually a different part of speech.
