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 | 
|---|---|---|
| Couper | 3 | 1538 (burd); 1562 (abbasy); 1585 (conventioun) | 
| Coupir | 2 | 1508 (bailȝery, convent) | 
| Cupper | 1 | 1621 (bailȝe) | 
| Cwper | 1 | 1543-4 (abbot) |