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 |
|---|---|---|
| Lanark | 4 | 1400 (barounry); 1433 (chapel); 1553 (act); 1555 (allegit) |
| Laneark | 1 | 1552 (commissionar) |
| Lanerk | 1 | 1592 (cordelere) |
| Lannerik | 1 | 1488 (dansar) |