Also summerset. [f. the name of Lord Fitzroy Somerset, Baron Raglan (17881855).] Used attrib. or ellipt. to designate a form of saddle (see quot. 1875).
1851. Catal. Grt. Exhib., 521/2. A quilted summerset saddle. Ibid., 522/2. Somerset hunting, saddle-tree.
1862. Catal. Internat. Exhib., Brit., II. No. 4685, Ladies saddle and Somerset saddle.
1875. Knight, Dict. Mech., 2245/1. Somerset. A saddle padded before the knee and behind the thigh.