Med. [a. L. lumbāgo, f. lumb-us loin.] A rheumatic affection in the lumbar region of the body. Also attrib.

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1693.  in Blancard’s Phys. Dict. (ed. 2).

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1707.  Floyer, Physic. Pulse-Watch, 398. As in a Lumbago, with pain in the Back.

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1771.  Johnson, Lett. to Mrs. Thrale, 7 July. The old rheumatism is come again into my face and mouth, but nothing yet to the lumbago.

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1804.  Wellington, in Gurw., Desp. (1837), II. 706. I am much annoyed by the lumbago, a disorder to which I believe, all persons in camp are liable.

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1899.  Allbutt’s Syst. Med., VI. 750. ‘Muscular rheumatism’ (of the lumbago type).

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