roband

/ˈroʊbænd/
noun
  1. A short piece of rope or line used on a ship to fasten a sail to a yard or spar.
    • The sailor tied the roband securely around the sail and the yard.
    • He replaced the old roband with a new one before setting out to sea.
    • During the storm, one of the robands snapped, causing the sail to flap wildly.