“Sane,” “sanitary,” and “sanative” are all adjectives that come from the root Latin “sanus,” meaning “healthy,” but they have slightly different usages. “Sane” usually refers to a healthy state of mind, “sanitary” describes something clean and germ-free, and “sanative” describes something that improves quality of health. A prescribed medication is sanative, as are practices such as getting adequate sleep and eating a healthy diet.