Arthritis (noun)

Inflammation of one or more joints, causing pain and stiffness that can worsen with age.

Origin:

From greek arthrītis, from arthron ‘joint’ + -itis ‘inflammation’.

Examples:

1. He was diagnosed with arthritis in his knees.
2. My grandmother's arthritis made it difficult for her to move around.
3. She experienced severe arthritis in her hands as she got older.
4. Arthritis can make everyday tasks more challenging.
5. The medication helped alleviate the symptoms of arthritis.