Toe water can also be referred to as foot bath or foot soak. Some other synonyms for toe water include pediluvium, foot basin, and foot spa. These terms are used to describe the process of soaking one's feet in water to relieve fatigue, soothe soreness, or treat various foot conditions. Other related terms include Epsom salt foot soak or herbal foot soak, which involve using different types of additives for added therapeutic benefits. Whatever the name, toe water is a popular and relaxing way to give your feet some much-needed TLC, especially after a long day on your feet.