| Singular | Plural | |
| Nominative | pīgnus | pīgnora |
| Genitive | pīgnoris | pīgnorum, pīgnorium (rare) |
| Dative | pīgnorī | pīgnoribus |
| Accusative | pīgnus | pīgnora |
| Ablative | pīgnore | pīgnoribus |
| Vocative | pīgnus | pīgnora |
| Singular | Plural | |
| Nominative | ||
| Genitive | ||
| Dative | ||
| Accusative | ||
| Ablative | ||
| Vocative |




