| Sg. Indef. | kǫstr |
| Sg. Def. | kǫstrinn |
| Pl. Indef. | kestir |
| Pl. Def. | kestirnir |
| Sg. Indef. | kastar |
| Sg. Def. | kastarins |
| Pl. Indef. | kasta |
| Pl. Def. | kastanna |
| Sg. Indef. | kesti |
| Sg. Def. | kestinum |
| Pl. Indef. | kǫstum |
| Pl. Def. | kǫstunum |
| Sg. Indef. | kǫst |
| Sg. Def. | kǫstinn |
| Pl. Indef. | kǫstu |
| Pl. Def. | kǫstuna |