Sentence:  Orion hit a rabbit once; but though sore wounded it got to the bury, and, struggling in, the arrow caught the side of the hole and was drawn out. Indeed, a nail filed sharp is not of much avail as an arrowhead; you must have it <WSD>barbed</WSD>, and that was a little beyond our skill. 
Meaning of the word marked with <WSD> tags:  To furnish with barbs, or with that which will hold or hurt like barbs, as an arrow, fishhook, spear, etc.