| Sg. Indef. | akarn |
| Sg. Def. | akarnið |
| Pl. Indef. | akørn |
| Pl. Def. | akørnini |
| Sg. Indef. | akarns |
| Sg. Def. | akarnsins |
| Pl. Indef. | akarna |
| Pl. Def. | akarnanna |
| Sg. Indef. | akarni |
| Sg. Def. | akarninum |
| Pl. Indef. | akørnum |
| Pl. Def. | akørnunum |
| Sg. Indef. | akarn |
| Sg. Def. | akarnið |
| Pl. Indef. | akørn |
| Pl. Def. | akørnini |