Mil. [f. LIMBER sb.1] trans. To attach the limber to (a gun). Hence absol. to fasten together the two parts of a gun-carriage, as a preparation for moving away. Usually to limber up.
1843. Lever, J. Hinton, vi. (1878), 34. The heavy artillery was seen to limber up, and move slowly across the field.
1851. Ord. & Regul. R. Engineers, xix. 95. Breadth of Shed, Guns limbered up 40 ft. 0 in.
1861. Man. Field Exercise Artillery, 50. Limbering is always done at a trot.
1868. Kinglake, Crimea (1877), III. i. 278. The guns of Turners battery were limbered up and pushed forward.