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 |
|---|---|---|
| Burnet | 4 | 1605-6 (cuntra); 1618 (brew talloun); 1630 (bailȝery); 1639 (codware) |
| Burnett | 2 | 1549 (candilmakar); 1605-06 (burding) |
| Burnat | 1 | 1493 (appering) |