| Old Norse | Date | Headword | 1st El. | 2nd El. | URL | |||
| *Þernusker | n.d. | i Tærnoskærriom (dative) | Tenskjær | þerna | tern | sker | skerry, isolated rock in the sea | Link |
| n.d. | i Þærnuskerium (dative) | Tenskjær | þerna | tern | sker | skerry, isolated rock in the sea | Link | |
| 1567 | Thenneskier | Tenskjær | þerna | tern | sker | skerry, isolated rock in the sea | Link | |
| 6110 | Thindschier | Tenskjær | þerna | tern | sker | skerry, isolated rock in the sea | Link | |