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 |
|---|---|---|
| Boner | 2 | 1469 (citiner); 1488 (commissar) |
| Bonar | 1 | 1505 (citiner) |