The following information is taken from the Dictionary of the Older Scots Tongue, available online at http://www.dsl.ac.uk/index.html. This is a work in progress.
| Spelling | Number | Dates & headers |
|---|---|---|
| del Cars | 1 | 1292 (bog) |
| Kers | 1 | 1492 (bog) |
| Kerse | 1 | 1499 (avouch) |