-ismi m.
(Suffix) declension of -ismi</small>
| m-w1 | singular | plural |
| | indefinite | definite | indefinite | definite |
| nominative | -ismi | -isminn | -ismar | -ismarnir |
| accusative | -isma | -ismann | -isma | -ismana |
| dative | -isma | -ismanum | -ismum | -ismunum |
| genitive | -isma | -ismans | -isma | -ismanna |