Jacuzzi and silhouette are eponyms — that is, they derive from the names of people. An Italian immigrant to California invented the bubbly hot tub called a jacuzzi. And the word silhouette commemorates a penny-pinching treasury secretary who lasted...
The shadow portrait called a silhouette takes its name from Etienne de Silhouette, a French official whose short-lived term under Louis XV was characterized by extremely unpopular austerity measures. This is part of a complete episode.