| Singular | Plural | |
|---|---|---|
| Nominativ | maleficentia | maleficentiae |
| Genitiv | maleficentiae, maleficentiai | maleficentiarum, maleficentium |
| Dativ | maleficentiai, maleficentiae | maleficentiis, maleficentiabus |
| Akkusativ | maleficentiam | maleficentias |
| Ablativ | maleficentia, maleficentiad | maleficentiis, maleficentiabus |
| Vokativ | maleficentia | maleficentiae |