Unshot. To remove the shot from, as a piece of ordnance; to take out the shot of.

Unsling. To take off the slings; to release from the slings; unsling knapsacks, etc.

Unspike. To remove a spike from, as from the vent of a cannon.

Untenable. Not to be held in possession; incapable of being defended.

Untrained. Not disciplined to exercise or manœuvre.

Unvanquished. Not conquered or defeated.

Unwarlike. Not fit for or used to war.

Upbraid. Any officer or soldier who shall upbraid another for refusing a challenge, shall himself be punished as a challenger. See Appendix, [Articles of War], [28].

Upon. Denoting assumption; as, he took the office of commander-in-chief upon him. Also, to incur responsibility; as, the general took everything upon himself.

Up-sar-o-ca. See [Absorokas].