| Sg | Pl | |
| Nom | norðr | norðr (rule) |
| Acc | norðr (rule) | norðr (rule) |
| Dat | norðri (rule) | norðrum (rule) |
| Gen | norðrs (rule) | norðra (rule) |
| Sg | Pl | |
| Nom | norðrit (rule) | norðrin (rule) |
| Acc | norðrit (rule) | norðrin (rule) |
| Dat | norðrinu (rule) | norðrunum (rule) |
| Gen | norðrsins (rule) | norðranna (rule) |