I think that may have been discussed here one time in the distant past*, kofga, but I for one am unwilling to take the time to Search for it, because there are bound to be hundreds (at least) of times it was, um, used.
You might try doing an on-line search for "word and phrase origins", then going to the sites that come up. Or you can save yourself some time and go to the Useful language links thread in I & A and click on Max's site (posted by AnnaStrophic).
*It goes without saying that I don't remember what the discussion consisted of, if it did happen.