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.
Some individuals may notice increased swelling or inflammation. For patients with ongoing water retention, the body weight will change drastically. As the water retention becomes worse, the extra water will cause a rise in body weight. Once the added water leaves the body, the weight will drop.