| Sg. Indef. | piparrót |
| Sg. Def. | piparrótin |
| Pl. Indef. | piparrøtur |
| Pl. Def. | piparrøturnar |
| Sg. Indef. | piparrótar |
| Sg. Def. | piparrótarinnar |
| Pl. Indef. | piparróta |
| Pl. Def. | piparrótanna |
| Sg. Indef. | piparrót |
| Sg. Def. | piparrótini |
| Pl. Indef. | piparrótum |
| Pl. Def. | piparrótunum |
| Sg. Indef. | piparrót |
| Sg. Def. | piparrótina |
| Pl. Indef. | piparrøtur |
| Pl. Def. | piparrøturnar |