Your request was rhematism which is probably a typo from rheumatism.
rhematism -
Traditional English :: rheumatism
rhematism - n. any disease marked by inflammation and pain in the joints, muscles, or fibrous tissue, esp. rheumatoid arthritis. [F rhumatisme or L rheumatismus f. Gk rheumatismos f. rheumatizo f. rheuma stream]