It indicates a weakness or loss of motor function, but not complete loss of movement.
For example:
* hemiparesis: weakness on one side of the body
* quadriparesis: weakness in all four limbs
* facial paresis: weakness in the muscles of the face
It's important to note that paresis is a symptom, not a diagnosis. It can be caused by a variety of conditions, including stroke, brain injury, nerve damage, and certain medical conditions.