I've often wondered how widespread "okay" is. I remember standing on the deck of a Washington State Ferry about 20 years ago, listening to a couple of Arabic me

I've often wondered how widespread "okay" is. I remember standing on the deck of a Washington State Ferry about 20 years ago, listening to a couple of Arabic men speaking. At the end of a long string of Arabic words, one of the men said "Okay?" with exactly the same inflection an English-speaker would, to solicit agreement, and his companion echoed "okay" in the apparent affirmative.