billhook

noun

1. A medieval polearm, fitted to a long handle, sometimes with an L-shaped tine or a spike protruding from the side or the end of the blade for tackling the opponent; a bill.
2. An agricultural hand tool often with a curved or hooked end to the blade used for pruning or cutting thick, woody plants.

   “I worked very hard in the copse of young ash, with my billhook and a shearing-knife; cutting out the saplings where they stooled too close together, making spars to keep for thatching, wall-crooks to drive into the cob, stiles for close sheep hurdles, and handles for rakes, and hoes, and two-bills, of the larger and straighter stuff.”

   “With a small billhook he carefully freed the collar of the tree from twigs and patches of moss which incrusted it to a height of a foot or two above the ground, an operation comparable to the "little toilet" of the executioner's victim.”

3. (literary, often)A part of the knotting mechanism in a reaper-binder or baler (agricultural machinery).
4. (form-of, rare)Rare form of bill hook (“spiked hook used in shops for hanging papers”).
5. (form-of, rare)Rare form of bill hook (“sharply pointed spike on honeyguide hatchlings' mandibles”).

verb

1. To use a billhook.

   “Toward the end of July, Vatanen took a forestry job. It meant billhooking and chopping excessive undergrowth from the woods on the sandy ridges around Kuhmo and living in a tent with an ever more faithful, almost full- grown hare.”