The term DECORATE UNNECESSARILY can be summarized by the four-letter word GILD. Gilding is a decorative technique that involves applying a thin layer of gold or other precious metal to an object. It has been used for centuries to add a luxurious touch to items such as furniture, jewelry, and artwork. Gilding is often seen as a way to make something look more expensive than it actually is, and thus it is a perfect fit for the term DECORATE UNNECESSARILY.