arthritis
/ɑːˈθrʌɪtɪs
/noun [mass noun]
A disease causing painful inflammation and stiffness of the joints.Some people with psoriasis develop an inflammation of the joints known as psoriatic arthritis....
- We get through our cancer and heart disease only to face arthritis, dementia, and osteoporosis.
- Bone and joint ailments such as arthritis and rheumatism are often reported too.
Origin
Mid 16th century: via Latin from Greek, from arthron 'joint'. Arthritic was already used in late Middle English.