G'day again,AAARGH! How did I turn Doddies into Dooies? (Even better than Doddied into Doggies, which I meant to type.)
Malcolm Douglas: Och Aye is probably the most logical contender for source of OK ... but, we need to remember that the distinction between French languages is between the Langue d'oc and the Langue d'oïl.
The difference tells how they say yes: the modern, northern, 'standard' French was 'oïl' - the modern oui - while the Provencais said 'oc. If you had two bob each way, you might even say, emphatically, 'oc ,'oïl pronounced oak, ee).
Then of course, they were only carrying on the full (or part) Latin form for 'yes': hoc ille ...
Ah, yes...
OK...
'oc ,'oïl...
hoc ille ...Regard(les)s,
Bob Bolton