What is the meaning of the prefix "tachy-"?

The prefix "tachy-" comes from the Greek word "tachys," which means fast or swift. In medical terminology, it is commonly used to describe conditions or processes that are associated with a rapid rate. For example, the term "tachycardia" refers to an abnormally fast heart rate. The prefix effectively conveys the idea of increased speed or frequency in various physiological contexts. Understanding this prefix is essential for interpreting numerous medical terms and recognizing their implications regarding the speed of bodily functions or conditions.