| Nominativ | chalcosmaragdus, chalcosmaragdus | chalcosmaragdi, chalcosmaragdi |
| Genitiv | chalcosmaragdi, chalcosmaragdi | chalcosmaragdum, chalcosmaragdum, chalcosmaragdorum, chalcosmaragdorum |
| Dativ | chalcosmaragdo, chalcosmaragdo | chalcosmaragdis, chalcosmaragdis |
| Akkusativ | chalcosmaragdum, chalcosmaragdum, chalcosmaragdom, chalcosmaragdom | chalcosmaragdos, chalcosmaragdos |
| Ablativ | chalcosmaragdo, chalcosmaragdo | chalcosmaragdis, chalcosmaragdis |
| Vokativ | chalcosmaragde, chalcosmaragde | chalcosmaragdi, chalcosmaragdi |
