The Collaborative International Dictionary of English v.0.48:

Cohune \Co*hune"\, n., or Cohune palm \Cohune palm\ . [Prob. fr.
   a native name in Honduras.]
   A Central and South American pinnate-leaved palm (Attalea
   cohune), the very large and hard nuts of which are turned to
   make fancy articles, and also yield an oil used as a
   substitute for coconut oil.
   [Webster 1913 Suppl.]