| Singular | Plural | |
|---|---|---|
| Nominativ | arnoglossa | arnoglossae |
| Genitiv | arnoglossae, arnoglossai | arnoglossarum, arnoglossum |
| Dativ | arnoglossae, arnoglossai | arnoglossis, arnoglossabus |
| Akkusativ | arnoglossam | arnoglossas |
| Ablativ | arnoglossad, arnoglossa | arnoglossabus, arnoglossis |
| Vokativ | arnoglossa | arnoglossae |