| Sg | Pl | |
| Nom | haukr | haukar (rule) |
| Acc | hauk (rule) | hauka (rule) |
| Dat | hauki (rule) | haukum (rule) |
| Gen | hauks (rule) | hauka (rule) |
| Sg | Pl | |
| Nom | haukrinn (rule) | haukarnir (rule) |
| Acc | haukinn (rule) | haukana (rule) |
| Dat | haukinum (rule) | haukunum (rule) |
| Gen | hauksins (rule) | haukanna (rule) |