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