There needs to be a section on etymology. I assume it's from earlier English, a transliteration of "who's"? This needs to be cited.
- Section added. —Stephen 19:59, 4 January 2009 (UTC)
If #3 is "proscribed by some", what is to be used instead? The undiscovered country from the bourn of which no traveller returns?
- Used instead: We saw several houses the roofs of which are falling off. —Stephen 15:53, 12 October 2009 (UTC)