nom <-> nom > mot-valise / portmanteau word
Smoke <-> Fog -> Smog
The great smog of 1952 was so thick people
could not see their feet.
Some of the 4,000 who died in the five days it lasted
did not suffer lung problems
- they fell into the Thames and drowned
because they could not see the river.
50 years after the great
smog, a new killer arises:
"a word composed of parts of two or more words,
such as chortle from chuckle and snort and motel
from motor and hotel.
The term was first used by Lewis Carroll
to describe many of the unusual words
in his Through the Looking-Glass (1871),
particularly in the poem “Jabberwocky.”
Other authors who have experimented with such words