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 |
|---|---|---|
| Coupar | 3 | 1488 (clerkschip); 1503 (chariot); 1504 (bastardry) |
| Couper | 3 | 1275 (couper); 1337 (couper); 1582-3 (bar) |
| Cowpar | 2 | 1574 (almany, conduce) |
| Cowper | 2 | 1520 (amerciat); 1622 (creat) |
| Cowpare | 1 | 1434 (coupar) |
| Cupir | 1 | 1500 (clene) |