The following information is taken from the Dictionary of the Older Scottish Tongue, available online at http://www.dsl.ac.uk/index.html. This is a work in progress.
| Spelling | Number | Dates & headers | 
|---|---|---|
| Urquhart | 3 | 1500-1 (cell); 1575 (bordale, clos) | 
| Urquhat | 1 | 1566 (cognosce) |