"-itis" is a suffix that means disease or inflammation. It is added to base words to form names of diseases. Examples are hepatitis, appendicitis, etc.

The suffix "-itis" is a commonly used term in medical terminology, indicating inflammation or a pathological condition related to inflammation. When added to the end of a word, it transforms the base word into the name of a specific disease or condition characterized by inflammation. Here are a few examples:

1. **Hepatitis:** Inflammation of the liver.
2. **Appendicitis:** Inflammation of the appendix.
3. **Arthritis:** Inflammation of the joints.
4. **Bronchitis:** Inflammation of the bronchial tubes.
5. **Dermatitis:** Inflammation of the skin.
6. **Gastritis:** Inflammation of the stomach lining.
7. **Tonsillitis:** Inflammation of the tonsils.
8. **Sinusitis:** Inflammation of the sinuses.
9. **Cystitis:** Inflammation of the urinary bladder.
10. **Laryngitis:** Inflammation of the larynx (voice box).

The use of "-itis" helps healthcare professionals and scientists precisely describe and categorize various medical conditions that involve inflammation. Understanding the root meanings of such medical terms aids in diagnosis, treatment, and communication within the medical field.