| Sg | Pl | |
| Nom | gröptr | graptar (rule) |
| Acc | gröpt (rule) | grapta (rule) |
| Dat | grapti (rule) | gröptum (rule) |
| Gen | graptar (rule) | grapta (rule) |
| Sg | Pl | |
| Nom | gröptrinn (rule) | graptarnir (rule) |
| Acc | gröptinn (rule) | graptana (rule) |
| Dat | graptinum (rule) | gröptunum (rule) |
| Gen | graptarins (rule) | graptanna (rule) |