| Sg | Pl | |
| Nom | hestr | hestar (rule) |
| Acc | hest (rule) | hesta (rule) |
| Dat | hesti (rule) | hestum (rule) |
| Gen | hests (rule) | hesta (rule) |
| Sg | Pl | |
| Nom | hestrinn (rule) | hestarnir (rule) |
| Acc | hestinn (rule) | hestana (rule) |
| Dat | hestinum (rule) | hestunum (rule) |
| Gen | hestsins (rule) | hestanna (rule) |