When you add the prefix hyper- to a word, it indicates an excess or overabundance of some kind. For example, the word hyperactive means extraordinarily active, as in “The student was so hyperactive she couldn’t sit still in class.”

The prefix 'hyper-' originates from Greek, meaning 'over,' 'beyond,' or 'excessive.' In medical terminology, it is used to describe conditions or states that are above normal levels, often indicating an excess of something in the body.

Hyper- is a word prefix that means more than normal, overly, above and beyond, to excess. In medicine, hyper- refers to a condition which is abnormally excess. Hyper- comes from the Greek, huper, which means over, beyond.