portmanteau

from WordNet (r) 3.0 (2006)
portmanteau
    n 1: a new word formed by joining two others and combining their
         meanings; "`smog' is a blend of `smoke' and `fog'";
         "`motel' is a portmanteau word made by combining `motor'
         and `hotel'"; "`brunch' is a well-known portmanteau" [syn:
         {blend}, {portmanteau word}, {portmanteau}]
    2: a large travelling bag made of stiff leather [syn:
       {portmanteau}, {Gladstone}, {Gladstone bag}]
    
from The Collaborative International Dictionary of English v.0.48
Portmanteau \Port*man"teau\, n.; pl. {Portmanteaus}. [F.
   porte-manteau; porter to carry + manteau a cloak, mantle. See
   {Port} to carry, and {Mantle}.]
   A bag or case, usually of leather, for carrying wearing
   apparel, etc., on journeys. --Thackeray.
   [1913 Webster]
    

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