_Somagia_ (Vol. ii., p. 120.).--This is the plural of "somagium,"
"summagium," and means "horse-loads." It is a word frequently found in
documents relating to agrarian matters, and may signify the load packed
upon the horse's back (whence the name "sumpter-horse"), or in a cart
drawn by a horse. MR. SANSOM will find a full explanation of the
derivatives of its root, "sagma," at p. 50., vol. vii., of Ducange.