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 |
|---|---|---|
| Langforgond | 2 | 1383 (chefe); 1385 (barony) |
| Langforgund | 2 | 1377 (bordland); 1604 (barony) |