| Singular | Plural | |
|---|---|---|
| Nominativ | gladius, gladius | gladii, gladii |
| Genitiv | gladii, cladi, gladi, gladii | gladiorum, gladiorum, gladiorumque |
| Dativ | gladio, gladioque, gladio | gladiisque, gladiis, gladiis |
| Akkusativ | gladiom, cladium, gladiom, gladiumque, gladium | gladios, gladiosque, gladios |
| Ablativ | gladio, gladioque, gladio | gladiisque, gladiis, gladiis |
| Vokativ | gladie, gladie | gladii, gladii |