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Fifth Declension.
17
| Sing. | Plur. | |
| N.V. | port-ŭs | port-ūs |
| A. | port-um | port-ūs |
| G. | port-ūs | port-ŭum |
| D. | port-ŭī | port-ĭbŭs or port-ŭbŭs |
| Abl. | port-ū | port-ĭbus or port-ŭbŭs |
| Sing. | Plur. | |
| N.V.A. | vĕr-ū | vĕr-ŭă |
| G. | vĕr-ūs | vĕr-ŭum |
| D. | vĕr-ŭī | vēr-ĭbŭs or vĕr-ŭbŭs |
| Abl. | vĕr-ū | vĕr-ĭbŭs or vĕr-ŭbŭs |
The Dat. Sing. sometimes has -ū for ŭī, as port-ū.
Most Nouns have only -ĭbŭs in Dat. and Abl. Plur. For those which have -ŭbŭs, see § 277.
Dŏmŭs (f.) house, base dŏm-, has in some cases inflexions of the Second Declension. The following are the prevalent forms:—
| Sing. | Plur. | |
| N.V. | dŏm-ŭs | dŏm-ūs |
| A. | dŏm-um | dŏm-ōs |
| G. | dŏm-ŭī | dŏm-ōrum |
| D. | dŏm-ŭī | dŏm-ĭbŭs |
| Abl. | dŏm-ō | dŏm-ĭbŭs |
The Loc. Sing. is dŏm-ī at home.
Fifth Declension.
§ 26. The Nom. Sing. ends in -ēs.
Gender.—Feminine, except dĭēs, m. or f.
Ex. dĭēs day, base dĭ-.
