Webster's Revised Unabridged Dictionary · 1913

Rheumatic

Rheumatic , adjective

[Greek {not transcribed} subject to a discharge or flux: compare Latin rheumaticus, French rhumatique. See Rheum, Rheumatism.]

1.
Derived from, or having the character of, rheum; rheumic. [Obsolete]
2.
(Medicine) Of or pertaining to rheumatism; as, rheumatic pains or affections; affected with rheumatism; as, a rheumatic old man; causing rheumatism; as, a rheumatic day.
That rheumatic diseases do abound. — Shakespeare

Rheumatic , noun

One affected with rheumatism.