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 |
|---|---|---|
| Mertoun | 2 | 1600 (baillerie); 1627 (cote-) |
| Myrtone | 1 | 1537 (cathedrale) |