It's a fairly common Britishism that, now you mention it, I have absolutely no clue about the etymology of! I'm going to have to go look it up!
[Comes back from looking it up... apparently it dates back to the 14th century or so, in fact, so it's a very OLD Britishism! :) --- http://www.worldwidewords.org/qa/qa-cha4.htm ]
no subject
[Comes back from looking it up... apparently it dates back to the 14th century or so, in fact, so it's a very OLD Britishism! :) --- http://www.worldwidewords.org/qa/qa-cha4.htm ]