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14
The New Latin Primer.
| Sing. | Plur. | |
| N.V. | ars | art-ēs |
| A. | art-em | art-ēs |
| G. | art-ĭs | art-ĭum |
| D. | art-ī | art-ĭbŭs |
| Abl. | art-ĕ | art-ĭbŭs |
The Loc. Sing., when used, ends in -ī, as Karthāgĭn-ī at Carthage, rūr-ī in the country; but the Abl. is generally used instead.
Some Nouns with Nom. Sing, in -ĭs have -ī in the Abl. Sing. Ex. tussis (f.) cough, Abl. Sing. tuss-ī, also tuss-ĕ See § 272.
vīs (f.) force is declined thus:
| Sing. | Plur. | |
| N. | vīs | vīr-ēs |
| A. | vim | vīr-ēs |
| G. | (none) | vīr-ĭum |
| D. | (none) | vīr-ĭbŭs |
| Abl. | vī | vīr-ĭbŭs |
A few other Nouns in -ĭs sometimes form the Ace. Sing. in -im. See § 271.
§ 22. The following list exhibits the most important forms of the Nom. and Gen, Sing, of Masculine and Feminine Nouns :
| Nom. | Gen. | |||
| amnĭs | amn-ĭs | m. | river | |
| turrĭs | turr-ĭs | f. | tower | |
| nūbēs | nūb-ĭs | f. | cloud | |
| cōnsŭl | cōnsŭl-ĭs | m. | consul |
