hamaul

/həˈmɔl/
noun
  1. A large, heavy hammer or mallet, often used for driving stakes or breaking rocks.
    • The construction worker swung the hamaul to break apart the old concrete slab.
    • We used a hamaul to drive the tent stakes deep into the hard ground.
    • The blacksmith lifted the hamaul and struck the glowing iron with a loud clang.