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 |
|---|---|---|
| Boithuell | 2 | 1567 (capitanry, cousign) |
| Bothewell | 1 | 1491 (breve) |
| Bothuile | 1 | 1488 (commit) |
| Bothwell | 1 | 1567 (bid) |