Okay

OK is a term of approval, sometimes written phonetically as okay, or extended to okey dokey or even, thanks to Ned Flanders, okelly dokelly. Originally it was short for "Oll Korrect", a deliberate mispelling of "all correct", written by a professor for completed school papers he corrected. The first recorded use of "OK" was in the Boston Morning Post[?] on March 23, 1839. It has since become a colloquial referent[?], used everyday among English speakers, and borrowed by non-English speakers.