Nephropathy, is kidney disease or damage to a kidney. Nephrosis is non-inflammatory nephropathy and nephritis is inflammatory kidney disease. Nephrology is the speciality that deals with kidney function and disease. Medical terms related to the kidneys commonly use terms such as renal and the prefix nephro-. The adjective renal, meaning related to the kidney, is from the Latin rēnēs, meaning kidneys; the prefix nephro- is from the Ancient Greek word for kidney, nephros (νεφρός).[15] For example, surgical removal of the kidney is a nephrectomy, while a reduction in kidney function is called renal dysfunction.