| Singular | Plural | |
|---|---|---|
| Nominativ | rationarium, rationariom | rationaria |
| Genitiv | rationarii | rationarium, rationariorum |
| Dativ | rationario | rationariis |
| Akkusativ | rationarium | rationaria |
| Ablativ | rationario | rationariis |
| Vokativ | rationarium | rationaria |
12 (14) Formen für „rationarium“