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 |
|---|---|---|
| Kello | 2 | 1456 (chalange); 1527 (attornay) |
| Kellou | 1 | 1456 (amerciament) |