It's interesting though. Sure that's common sense, but look at some of the words we have now. Cunt is derived from an Anglo Saxon word for a sheath or scabbard (much like a German word for sheath or scabbard also means vagina). The word queynt in Middle English was a derogatory term for the vagina as well and sounds about the same as the word quaint in modern day English, which has a meaning of being quiet and/or pleasant, I believe.