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 |
|---|---|---|
| Creichtoun | 3 | 1536 (daft); 1541 (dale); 1570 (clerk) |
| Creichtane | 1 | 1530 (blaspheme) |
| Crichtoun | 1 | 1614 (browstar) |