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 |
|---|---|---|
| Erskin | 3 | 1493 (cro); 1533-4 (ambassiatry); 1573 (berging) |
| Erskyne | 2 | 1623 (corn); 1624 (brase) |
| Areskin | 1 | c1640 (clamper) |
| Erskine | 1 | 1612 (capitane) |
| of Erskyne | 1 | 1406 (dame) |