| Nominativ | mergus, mergus | mergi, merci |
| Genitiv | mergi, merci | mergorum, mergum, mercum, mergorum |
| Dativ | mergo, mergo | mercis, mergis |
| Akkusativ | mergom, mergum, mercum, mergom | mergos, mergos |
| Ablativ | mergo, mergo | mercis, mergis |
| Vokativ | merge, merce | mergi, merci |
