As I was editing my manuscripts, I noticed that I occasionally used the word Okay, or its abbreviation OK. There’s nothing that peeves me more than an anachronism in historical fiction, so I decided to see if I could trace the origins of the word.
Easier said than done! I did find out that OK has been in common usage in the US since the 1830s (meaning I was safe to use it in the context of the 1880s). However, the actual formation of “OK” is credited to the French, the Scots, the Greeks, and a railway freight agent, among others. My personal favorite origin story is from the Chocktaw Indian language, where “okeh” means “it is so”.
However it came about, OK’s popularity certainly rose when Martin van Buren ran for re-election in 1840; his nickname was “Old Kinderhook”, and his supporters formed the “OK Club” during his Presidential campaign.
While it was not enough to win van Buren the election, OK’s popularity has not waned at all since that time.