| Nominativ | props, ops, opsius, opulus | hopes, steropes, tropes, panopes, opes, opesque |
| Genitiv | metopis, opis | opium, oppium, aeropum, canopum, opum, opumque, oropum, optutum, propium |
| Dativ | opitercivm, opulo, opidanorum, opinatione, opevirginea, calliope, opidinis, opinationem, alope, opeream, opi, opidis, opinationes, canopi, operebat, opidum, opinationis, metope, cassiope, opiionis, opiparem, operorum, opimia, opipares, chalciope, opidani, opimio, opiter, propi, ope, opulo, opidanis, opinatio | opibus, opibusque, obibus |
| Akkusativ | opem, opemque | opesque, hopes, opulos, steropes, tropes, panopes, opes |
| Ablativ | opulo, opevirginea, calliope, alope, opeream, operebat, metope, cassiope, operorum, chalciope, ope, opulo | opibus, opibusque, obibus |
| Vokativ | props, ops, opsius | hopes, steropes, tropes, panopes, opes, opesque |
