| Nominativ | octauum, octavus, octaua | octavianus, octavae, octavianis, octaua, octaviano, octaui, octavianam, octavianos, octaviani, octavianum |
| Genitiv | octaviano, octaviano, octaui, octaui, octavianam, octavianos, octavianam, octavianos, octaviani, octavianum, octaviani, octavianum, octavianus, octavae, octavianis, octavianus, octavianis | octavarum, octavorum, octavorum |
| Dativ | octauo, octauo, octavae | octavis, octavis, octavis |
| Akkusativ | octavamque, octauam, octauum, octauum | octavas, octaua, octavos |
| Ablativ | octaua, octauo, octauo | octavis, octavis, octavis |
| Vokativ | octaua, octave, octauum | octavianus, octavae, octavianis, octaua, octaviano, octaui, octavianam, octavianos, octavianum, octaviani |
