Definition:
A
portmanteau word is formed out of parts of other
words.
Oxbridge is made up from parts of the names of
Oxford and Cam
bridge and refers to either of the two universities. '
Swatch' is a portmanteau word formed from
Swiss w
atch, 'brunch' is formed from
Breakfast and l
unch.
A 'chocoholic' has a problem with chocolate that is like the addiction of an alcoholic. Portmanteau words offer a quick way of forming new words that are easily understood by virtually everybody.