Jester (noun)

1. A professional entertainer in medieval courts who performed tricks, told jokes, and made fun of people.
2. A person who behaves in a playful, foolish, or amusing way.

Origin:

The word jester comes from the middle english word "jester" which means "a professional fool or comedian" and it was first used in the 14th century.

Examples:

1. The jester made the king laugh with his jokes.
2. He was the court jester for the king.
3. The jester's antics made the courtiers laugh.
4. The jester wore a brightly colored outfit.
5. He was often the jester at parties.