The origin of OK is disputed; however, most modern reference works hold that it originated around Boston as part of a fad in the late 1830s of abbreviatin

The origin of OK is disputed; however, most modern reference works hold that it originated around Boston as part of a fad in the late 1830s of abbreviating misspellings – that it is an initialism of "oll korrect" as a misspelling of "all correct". This origin was first described by linguist Allen Walker Read in the 1960s. https://en.wikipedia.org/wiki/OK https://en.wikipedia.org/wiki/OK