Most people think of the 20-volume Oxford English Dictionary as a quintessentially British production, but if you pore carefully over the first edition, compiled between 1858 and 1928, you will find thousands of American words.
There are familiar words describing nature particular to the U.S., like prairie, skunk, coyote and chipmunk, but also more recondite ones, like catawba (a species of grape and type of sparkling wine), catawampous (fierce, destructive) and cottondom (the region in which cotton is grown).
Today, Americanisms are easy for modern lexicographers to find because of the internet and access to large data sets.
But all of the American words in that first edition found their way to Oxford in an age when communication across the Atlantic was far more difficult.
Organizations:
Oxford
Locations:
British, U.S, catawba