| SgM | SgF | SgN | PlM | PlF | PlN | |
| Nom | dauðr | dauð (rule) | dautt (rule) | dauðir (rule) | dauðar (rule) | dauð (rule) |
| Acc | dauðan (rule) | dauða (rule) | dautt (rule) | dauða (rule) | dauðar (rule) | dauð (rule) |
| Dat | dauðum (rule) | dauðri (rule) | dauðu (rule) | dauðum (rule) | dauðum (rule) | dauðum (rule) |
| Gen | dauðs (rule) | dauðrar (rule) | dauðs (rule) | dauðra (rule) | dauðra (rule) | dauðra (rule) |
| SgM | SgF | SgN | Pl | |
| Nom | dauði (rule) | dauða (rule) | dauða (rule) | dauðu (rule) |
| Acc | dauða (rule) | dauðu (rule) | dauða (rule) | dauðu (rule) |
| Dat | dauða (rule) | dauðu (rule) | dauða (rule) | dauðum (rule) |
| Gen | dauða (rule) | dauðu (rule) | dauða (rule) | dauðu (rule) |
| Degree | |
| Comp | dauðari (rule) |
| Sup | dauðastr (rule) |