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 |
|---|---|---|
| Aysoune | 2 | 1515 (bludewite, continue) |
| Ysoun | 1 | 1604 (cognosceing) |