| Sg | Pl | |
| Nom | gestr | gestir (rule) |
| Acc | gest (rule) | gesti (rule) |
| Dat | gest (rule) | gestum (rule) |
| Gen | gests (rule) | gesta (rule) |
| Sg | Pl | |
| Nom | gestrinn (rule) | gestirnir (rule) |
| Acc | gestinn (rule) | gestina (rule) |
| Dat | gestinum (rule) | gestunum (rule) |
| Gen | gestsins (rule) | gestanna (rule) |