| Sg | Pl | |
| Nom | hafskip | höfskip (rule) |
| Acc | hafskip (rule) | höfskip (rule) |
| Dat | hafskipi (rule) | hafskipum (rule) |
| Gen | hafskips (rule) | hafskipa (rule) |
| Sg | Pl | |
| Nom | hafskipit (rule) | höfskipin (rule) |
| Acc | hafskipit (rule) | höfskipin (rule) |
| Dat | hafskipinu (rule) | hafskipunum (rule) |
| Gen | hafskipsins (rule) | hafskipanna (rule) |