For cramps:
* -spasm: This suffix is commonly used to denote involuntary muscle contractions, which is the basis of cramps.
* Examples: Myospasm (muscle cramp), Gastrospasm (stomach cramp)
For twitching:
* -myoclonus: This term refers to involuntary muscle jerks or spasms, often brief and repetitive.
* Examples: Myoclonic jerk, Nocturnal myoclonus
* -tremor: This refers to involuntary rhythmic muscle contractions, which can sometimes manifest as twitching.
* Examples: Resting tremor, Essential tremor
* -fasciculation: This refers to a spontaneous twitching of muscle fibers, often visible under the skin.
* Example: Benign fasciculation
Important to note:
* These suffixes are often used in medical terminology and might not be suitable for everyday language.
* The specific suffix used depends on the context and the type of involuntary movement being described.
If you're looking for a general term for cramps or twitching, "involuntary movement" is a good option.