| Singular | Plural | |
|---|---|---|
| Nominativ | coopertorium | coopertoria |
| Genitiv | coopertori, coopertorii | coopertoriorum, coopertorium |
| Dativ | coopertorio | coopertoriis |
| Akkusativ | coopertorium | coopertoria |
| Ablativ | coopertorio | coopertoriis |
| Vokativ | coopertorium | coopertoria |
12 (14) Formen für „coopertorium“