| Singular | Plural | |
|---|---|---|
| Nominativ | involucrom, involucrum | involucra |
| Genitiv | involucri | involucrorum, involucrum |
| Dativ | involucro | involucrisque, involucris |
| Akkusativ | involucrum | involucra |
| Ablativ | involucro | involucrisque, involucris |
| Vokativ | involucrum | involucra |
12 (16) Formen für „involucrum“