| Sg. Indef. | arftaka |
| Sg. Def. | arftakan |
| Pl. Indef. | arftǫkur |
| Pl. Def. | arftǫkurnar |
| Sg. Indef. | arftǫku |
| Sg. Def. | arftǫkunnar |
| Pl. Indef. | arftakna |
| Pl. Def. | arftaknanna |
| Sg. Indef. | arftǫku |
| Sg. Def. | arftǫkunni |
| Pl. Indef. | arftǫkum |
| Pl. Def. | arftǫkunum |
| Sg. Indef. | arftǫku |
| Sg. Def. | arftǫkuna |
| Pl. Indef. | arftǫkur |
| Pl. Def. | arftǫkurnar |