What does the prefix dys- mean?

The prefix "dys-" means difficult, bad, abnormal, or impaired. It is often used to indicate a problem or a condition that is not functioning properly.

Here are some examples:

* Dyslexia: Difficulty reading.

* Dysfunction: Impaired or abnormal functioning.

* Dyspepsia: Difficulty digesting food.

* Dysphonia: Difficulty speaking.

* Dysplasia: Abnormal development of cells.

* Dystopia: An imagined place or state in which everything is unpleasant or bad.

Keep in mind that the meaning of "dys-" can vary slightly depending on the specific word it is attached to.