Rother nail

from The Collaborative International Dictionary of English v.0.48
Rother \Roth"er\, n. [OE. See {Rudder}.]
   A rudder.
   [1913 Webster]

   {Rother nail}, a nail with a very full head, used for
      fastening the rudder irons of ships; -- so called by
      shipwrights.
      [1913 Webster]
    

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