portmanteau word

Noun

• 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
    

Related words

• Synonyms: 
  blend , portmanteau