from The Century Dictionary and Cyclopedia
- n. A tool used by the drillers of oil-wells to cut the rope when the tool at the lower end becomes fast in the well.
Sorry, no etymologies found.
She checked over her harness again-wire-scissors, bolts, spikes, rope-knife, preknotted ties, all sized for her large, stubby -hands-and stared out over the obstacle course she herself had set up.
She leapt to the sandstone boulder with a growl, and drew her rope-knife on the surprised mage hiding behind it.