A small block or peg of wood.
More example sentences
- Why not just knock the last nog out and fit two more studs then replace the nog (only shorter)?
- The method used to secure the keel assembly atop the blocks is unclear; Sutherland proposes notches in the tops of the splitting blocks and Ollivier states that they used wooden nogs driven down vertically into the keel block.
early 17th century: of unknown origin.
late 17th century: of unknown origin.