What does "patch" mean?

Additional senses

1. 2.A small piece of black silk stuck on the face, or neck, to hide a defect, or to heighten beauty. Your black patches you wear variously. Beau. & Fl.
2. 3.(Gun.) A piece of greased cloth or leather used as wrapping for a rifle ball, to make it fit the bore.
3. 4.Fig.: Anything regarded as a patch; a small piece of ground; a tract; a plot; as, scattered patches of trees or growing corn. Employed about this patch of ground. Bunyan.
4. 5.(Mil.) A block on the muzzle of a gun, to do away with the effect of dispart, in sighting.
5. 6.A paltry fellow; a rogue; a ninny; a fool. [Obs. or Colloq.] "Thou scurvy patch." Shak. Patch ice, ice in overlapping pieces in the sea. -- Soft patch, a patch for covering a crack in a metallic vessel, as a steam boiler, consisting of soft material, as putty, covered and held in place by a plate bolted or riveted fast.
6. 7.To mend by sewing on a piece or pieces of cloth, leather, or the like; as, to patch a coat.
7. 8.To mend with pieces; to repair with pieces festened on; to repair clumsily; as, to patch the roof of a house.
8. 9.To adorn, as the face, with a patch or patches. Ladies who patched both sides of their faces. Spectator.
9. 10.To make of pieces or patches; to repair as with patches; to arrange in a hasty or clumsy manner; -- generally with up; as, to patch up a truce. "If you'll patch a quarrel." Shak.