| Sg. Indef. | ketill |
| Sg. Def. | ketillinn |
| Pl. Indef. | katlar |
| Pl. Def. | katlarnir |
| Sg. Indef. | ketils |
| Sg. Def. | ketilsins |
| Pl. Indef. | katla |
| Pl. Def. | katlanna |
| Sg. Indef. | katli |
| Sg. Def. | katlinum |
| Pl. Indef. | kötlum |
| Pl. Def. | kötlunum |
| Sg. Indef. | ketil |
| Sg. Def. | ketilinn |
| Pl. Indef. | katla |
| Pl. Def. | katlana |