| Singular | Plural | |
|---|---|---|
| Nominativ | armillaeque, armilla | armille, armillae |
| Genitiv | armillae, armillai, armille | armillum, armillarum |
| Dativ | armille, armillae, armillai | armillis, armillisque, armillabus |
| Akkusativ | armillam | armillas |
| Ablativ | armillad, armillaeque, armilla | armillabus, armillis, armillisque |
| Vokativ | armillaeque, armilla | armille, armillae |