| Singular | Plural | |
|---|---|---|
| Nominativ | achilles | achilles |
| Genitiv | achillides, achillis, achilli | achillium, achillum |
| Dativ | achilli, achille, achillides | achillibus |
| Akkusativ | achillem, achillen, achilles | achillis |
| Ablativ | achille | achillibus |
| Vokativ | achille, achilles | achilles |