THE SECOND DECLENSION
31
First Review of Vocabulary and Grammar, §§502-505
LESSON IX
THE SECOND OR O-DECLENSION
70. Latin nouns are divided into five declensions.
The declension to which a noun belongs is shown by the ending of the genitive singular. This should always be learned along with the nominative and the gender.
71. The nominative singular of nouns of the Second or O-Declension ends in -us, -er, -ir, or -um. The genitive singular ends in -ī.
72. Gender. Nouns in -um are neuter. The others are regularly masculine.
73. Declension of nouns in -us and -um. Masculines in -us and neuters in -um are declined as follows:
| dominus (base domin-), m., master | pīlum (base pil-), n., spear | |||
Singular | ||||
| TERMINATIONS | TERMINATIONS | |||
| Nom.[1] | do'minus | -us | pīlum | -um |
| Gen. | dominī | -ī | pīlī | -ī |
| Dat. | dominō | -ō | pīlō | -ō |
| Acc. | dominum | -um | pīlum | -um |
| Abl. | dominō | -ō | pīlō | -ō |
| Voc. | domine | -e | pīlum | -um |
Plural | ||||
| Nom. | dominī | -ī | pīla | -a |
| Gen. | dominō’rum | -ōrum | pīlō’rum | -ōrum |
| Dat. | dominīs | -īs | pīlīs | -īs |
| Acc. | dominōs | -ōs | pīla | -a |
| Abl. | dominīs | -īs | pīlīs | -īs |
- ↑ Compare the declension of domina and of dominus.
