1. Arthritis: A chronic inflammatory disorder affecting the joints, often causing pain and stiffness; from the Greek ‘arthron’ meaning joint, and ‘itis’ meaning inflammation.

2. Gastritis: Inflammation of the lining of the stomach; from the Greek ‘gastēr’ meaning stomach, and ‘itis’ meaning inflammation.

3. Sinusitis: Inflammation of the sinuses; from the Greek ‘sinus’ meaning a channel, and ‘itis’ meaning inflammation.

4. Peritonitis: Inflammation of the membranes lining the abdominal cavity; from the Greek ‘peritonaion’ meaning a membrane covering the intestines, and ‘itis’ meaning inflammation.

5. Appendicitis: Inflammation of the appendix; from the Greek ‘appendis’ meaning an appendage, and ‘itis’ meaning inflammation.

6. Bronchitis: Inflammation of the bronchi, the passages that carry air to and from the lungs; from the Greek ‘bronchus’ meaning a windpipe, and ‘itis’ meaning inflammation.

1. Allergitis: An allergic reaction, often characterized by inflammation of the skin or airways. Etymologically, it comes from the Greek roots “allos” (other) and “itis” (inflammation).

5. Colitis: Inflammation of the colon. Etymologically, it comes from the Greek root “colo” (large intestine) and “itis” (inflammation).

6. Dermatitis: Any inflammation of the skin, often caused by an allergic reaction or infection. Etymologically, it comes from the Greek roots “derm” (skin) and “itis” (inflammation).

7. Endocarditis: Inflammation of the inner lining of the heart. Etymologically, it comes from the Greek roots “endo” (inner) and “card” (heart) and “itis” (inflammation).

9. Glomerulitis: Inflammation of the glomeruli, which are the microscopic filters of the kidneys. Etymologically, it comes from the Greek root “glomerul” (small ball) and “itis” (inflammation).

10. Hepatitis: Inflammation of the liver, usually caused by a virus or other infection. Etymologically, it comes from the Greek root “hepat” (liver) and “itis” (inflammation).

11. Meningitis: Inflammation of the membranes covering the brain and spinal cord, usually caused by infection. Etymologically, it comes from the Greek root “mening” (membrane) and “itis” (inflammation).

12. Myocarditis: Inflammation of the heart muscle, usually caused by a virus. Etymologically, it comes from the Greek roots “myo” (muscle) and “card” (heart) and “itis” (inflammation).

13. Nephritis: Inflammation of the kidneys, usually caused by infection or irritation. Etymologically, it comes from the Greek root “nephro” (kidney) and “itis” (inflammation).

14. Pericarditis: Inflammation of the membrane surrounding the heart, usually caused by infection. Etymologically, it comes from the Greek roots “peri” (around) and “card” (heart) and “itis” (inflammation).

15. Prostatitis: Inflammation of the prostate gland, usually caused by infection. Etymologically, it comes from the Greek root “prostata” (prostate) and “itis” (inflammation).

16. Sinusitis: Inflammation of the sinuses, usually caused by infection. Etymologically, it comes from the Greek root “sinus” (cavity) and “itis” (inflammation).

17. Tendonitis: Inflammation of the tendons, usually caused by overuse or injury. Etymologically, it comes from the Greek root “tendo” (tendon) and “itis” (inflammation).

18. Urethritis: Inflammation of the urethra, usually caused by infection. Etymologically, it comes from the Greek root “urethr” (urethra) and “itis” (inflammation).