Eponymy is the practice of naming something after a person, often to honor their contributions or achievements. This can include naming diseases, inventions, or places after individuals. For example, the term Alzheimer's disease is named after Alois Alzheimer, the doctor who first identified the condition. Eponymy can also extend to brands and products, where a founder's name becomes synonymous with the item. A well-known example is Ford, named after Henry Ford, who revolutionized the automobile industry. Eponymous names help to commemorate individuals while also providing a recognizable reference in various fields.