Word Origin and History for tertiary Expand. adj. 1650s, of the third order, rank, degree, etc., from Latin tertiarius of or pertaining to a third, from tertius third, a third, from root of tres three (see three).
Water and Fluid retention in legs, also known as edema, is a medical condition caused by abnormal accumulation of water or fluids in the bodyâs tissues. Though excess water can be accumulated anywhere in the body, the most common areas are the ankles and legs.
Drink plenty of water. Typically, you need eight glasses per day, according to Parent Time. Water helps to flush excess sodium from the body, reducing swelling in your feet and legs. Avoid drinks that contain caffeine, however, because these drinks contain sodium and can cause you to retain fluid.