Nouns
In the first declension, the genitive endings are:
- ·ae for singular,
- and ·arum for plural.
| word | genitive singular | genitive plural |
|---|---|---|
| puella -ae f. | puellae | puellarum |
In the second declension, the genitive endings are:
- ·i for singular,
- and ·orum for plural.
| word | genitive singular | genitive plural |
|---|---|---|
| colonus -i m. | coloni | colonorum |
| puer pueri m. | pueri | puerorum |
| magister magistri m. | magistri | magistrorum |
| templum templi n. | templi | templorum |
In the third declension, the genitive endings are:
- ·is for singular,
- and ·um for plural.
| word | genitive singular | genitive plural |
|---|---|---|
| rex regis m. | regis | regum |
| litus litoris n. | litoris | litorum |
These endings are added to the base of the word. You can find the base of a third declension word by removing ·is from its genitive singular.
Some third-declension nouns have a genitive plural in ·ium. Here are all the third-declension nouns from the first year course whose genitive plural ends in ·ium:
| word | genitive plural |
|---|---|
| civis civis c. | civium |
| collis collis m. | collium |
| hostis hostis c. | hostium |
| mare maris n. | marium |
| moenia moenium n. pl. | moenium |
| mons montis f. | montium |
| mors mortis f. | mortium |
| navis navis f. | navium |
| nox noctis f. | noctium |
| urbs urbis f. | urbium |
Adjectives
In first and second declension adjectives, the genitive endings are:
- ·i for non-feminine singular,
- ·ae for feminine singular,
- ·orum for non-feminine plural,
- ·arum for feminine plural.
| word | genitive singular non-feminine | genitive singular feminine | genitive plural non-feminine | genitive plural feminine |
|---|---|---|---|---|
| bonus -a -um | boni | bonae | bonorum | bonarum |
| miser misera miserum | miseri | miserae | miserorum | miserarum |
In third declension adjectives, the genitive endings are:
- ·is for singular,
- and ·ium for plural.
| word | genitive singular | genitive plural |
|---|---|---|
| fortis forte | fortis | fortium |
| ingens ingentis | ingentis | ingentium |
Pronouns
- earum
- their f.
- eius
- his, her, its
- eorum
- their m., n.
Possessive adjectives
The genitive forms of the personal pronouns are not used to indicate possession. These pronouns have possessive adjectives instead.
- meus -a -um
- my
- noster nostra nostrum
- our
- suus -a -um
- his, her, its, their
- tuus -a -um
- your s.
- vester vestra vestrum
- your pl.