| Sg. Indef. | ark |
| Sg. Def. | arkið |
| Pl. Indef. | örk |
| Pl. Def. | örkin |
| Sg. Indef. | arks |
| Sg. Def. | arksins |
| Pl. Indef. | arka |
| Pl. Def. | arkanna |
| Sg. Indef. | arki |
| Sg. Def. | arkinu |
| Pl. Indef. | örkum |
| Pl. Def. | örkunum |
| Sg. Indef. | ark |
| Sg. Def. | arkið |
| Pl. Indef. | örk |
| Pl. Def. | örkin |