arthritic (adj.)youdaoicibaDictYouDict[arthritic 词源字典]
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.[arthritic etymology, arthritic origin, 英语词源]