| Singular | Plural | |
|---|---|---|
| Nominativ | decrescentia | decrescentiae |
| Genitiv | decrescentiae, decrescentiai | decrescentiarum |
| Dativ | decrescentiae, decrescentiai | decrescentiis, decrescentiabus |
| Akkusativ | decrescentiam | decrescentias |
| Ablativ | decrescentia, decrescentiad | decrescentiis, decrescentiabus |
| Vokativ | decrescentia | decrescentiae |