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12
The New Latin Primer.
| Sing. | Plur. | |
| N.V. | ăgĕr | ăgr-ī |
| A. | ăgr-ŭm | ăgr-ōs |
| G. | ăgr-ī | ăgr-ōrum |
| D. | ăgr-ō | ăgr-īs |
| Abl. | ăgr-ō | ăgr-īs |
A list of the Nouns in -ĕr which form their Genitive in -ĕrī is given in § 268.
vĭr man, G. vĭr-ī, is declined as puer. For G. Pl., see § 268.
In Nouns the base of which ends in -ĭ-, the Gen. Sing. is usually contracted. The Voc. Sing. of Roman Proper names in -ĭŭs, and of fīlĭŭs son, is also contracted. Thus, nĕgōtī (for nĕgōtĭī) of-business, fīlī (for fīlĭĕ) my son!
| Sing. | Plur. | |
| N. | fīlĭ-ŭs | fīlĭ-ī |
| V. | fīlī | fīlĭ-ī |
| A. | fīlĭ-ŭm | fīlĭ-ōs |
| G. | fīlī or fīlĭ-ī | fīlĭ-ōrum |
| D. | fīlĭ-ō | fīlĭ-īs |
| Abl. | fīlĭ-ō | fīlĭ-īs |
dĕŭs god is irregular.
| Sing. | Plur. | |
| N. | dĕ-ŭs | dī, rarely dĕ-ī |
| V. | dĕ-ŭs | dī, rarely dĕ-ī |
| A. | dĕ-um | dĕ-ōs |
| G. | dĕ-ī | dĕ-ōrum or dĕ-um |
| D. | dĕ-ō | dīs, rarely dĕ-īs |
| Abl. | dĕ-ō | dīs, rarely dĕ-īs |
For other irregularities, see §§ 269, 270.
Third Declension.
§ 21. The Nom. Sing. has many endings. Examples of the more frequent will be given below.
