أصل كلمة ok

[Bikerboy]

From the site of wikipedia
Okay

For other uses, see Okay (disambiguation).
Okay, OK, Oh Kay or O.K. is a colloquial English word denoting approval, assent, or acknowledgment that has been a loanword from English for many other ********s. As an adjective it means 'adequate', 'acceptable' ("this is okay to send out"), often in contrast to 'good' ("the food was okay"); it also functions as an adverb in this sense. As an interjection, it can denote compliance ("Okay, I will do that"), agreement ("Okay, that's good"), a wish to defuse a situation or calm someone ("It's okay, it's not that bad"). As a noun and verb it means 'assent'. ("The boss okayed the purchase")

The origins of 'okay' are not known with certainty, and have been the subject of much discussion over the years.