köken: Borrowed from Russian ревмати́зм (revmatízm), from German Rheumatismus, from Latin rheumatismus, from Ancient Greek ῥευματισμός (rheumatismós, “humour, discharge, rheum”), from ῥευματίζομαι (rheumatízomai, “to suffer from a rheum”), from ῥεῦμα (rheûma, “stream, flow”), from ῥέω (rhéō, “to flow”).
köken: Attested since the 15th century (rreima). Learned borrowing from Latin rheuma, from Ancient Greek ῥεῦμα (rheûma), derived from ῥέω (rhéō, “to flow”).