This is a statement made by someone on a mailing list I follow a little while back. It's interesting, and wouldn't surprise me if it were true. Makes you think a little, too. ;-)
You two may find this interesting. A few weeks ago, I was talking to a friend of mine who is a history fanatic. We got on the subject of four-letter words, and he told me something interesting.
Way back in the days of the Normans and the Saxons, the Normans woke up one morning and decided that all Saxon words were bad, and were no longer allowed to be spoken. Thus, the Norman "fornicate" became the accepted version of the Saxon "fuck". The Norman "feces" superceeded the Saxon "shit", and so on.
So, if you really want to get hung up over language, I'd say... quit being Norman racists! and use whatever words you want :P