- Also ar·thrit·i·cal. of, relating to, or afflicted with arthritis.
- a person afflicted with arthritis.
Origin of arthritic
mid-14c., artetyk, "pertaining to arthritis," also as a noun, from Old French artetique (12c., Modern French arthritique), corresponding to Latin arthriticus, from Greek arthritikos, from arthron "joint" (see arm (n.1)). Spelling gradually restored to Latin form in 17c.