| Singular | Plural | |
|---|---|---|
| Nominativ | autumnum, autumnus, autumna, autumnusque | autumni, autumnae, autumna |
| Genitiv | autumnae, autumni, autumni | autumnorum, autumnarum, autumnorum |
| Dativ | autumnae, autumno, autumno | autumnis |
| Akkusativ | autumnam, autumnum, autumnum | autumnos, autumnas, autumna |
| Ablativ | autumno, autumna, autumno | autumnis |
| Vokativ | autumnum, autumne, autumna | autumni, autumnae, autumna |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | autumnus, autumnusque | autumni |
| Genitiv | autumni | autumnorum |
| Dativ | autumno | autumnis |
| Akkusativ | autumnum, autumnom | autumnos |
| Ablativ | autumno | autumnis |
| Vokativ | autumne | autumni |
| Grundform | |
|---|---|
| Positiv | autumne |
| Komparativ | — |
| Superlativ | — |