trenail
/ˈtriːneɪl/
noun
- A wooden pin or peg used to fasten timbers together, especially in shipbuilding or wooden structures.
- Old wooden barns often used trenails instead of metal nails to hold the frame together.
- He carved a trenail from a piece of ash to repair the broken beam.
- The shipwright drove a trenail through the oak planks to secure the hull.