Usage examples for gnaw:

• I suppose, however, that we can let you gnaw the bones after we've got off the meat. "Alice of Old Vincennes" – Maurice Thompson

• It was that man of ours who had told me that there was always the chance of escape, and had tried to gnaw my bonds when we were in the ship's forepeak- Sidroc, the courtman. "A Sea Queen's Sailing" – Charles Whistler

• She pulled from under the side of the bed two bones wrapt in paper, and Roy at once seized them and began to gnaw at them. "Two Prisoners" – Thomas Nelson Page