| Sg | Pl | |
| Nom | goði | goðar (rule) |
| Acc | goða (rule) | goða (rule) |
| Dat | goða (rule) | goðum (rule) |
| Gen | goða (rule) | goða (rule) |
| Sg | Pl | |
| Nom | goðinn (rule) | goðarnir (rule) |
| Acc | goðann (rule) | goðana (rule) |
| Dat | goðanum (rule) | goðunum (rule) |
| Gen | goðans (rule) | goðanna (rule) |