FAM: Lesson - Ordinal Numbers
Ordinal Numbers
Ordinal numbers are used for listing the order (ordo, ordinis, m.) of a given noun. For example: first, second, and third. All ordinal numbers are regular 1st/2nd declension adjectives, and they are usually based on the cardinal number (example: quattuor - four becomes quartus - fourth). Below is a list of the ordinal numbers from first through tenth. Take note of how many of these ordinal numbers appear in English derivatives.
- primus, prima, primum - first
- secundus, secunda, secundum - second
- tertius, tertia, tertium - third
- quartus, quarta, quartum - fourth
- quintus, quinta, quintum - fifth
- sextus, sexta, sextum - sixth
- septimus, septima, septimum - seventh
- octavus, octava, octavum - eighth
- nonus, nona, nonum - ninth
- decimus, decima, decimum - tenth
Declining Ordinal Numbers
All ordinal numbers decline like 1st and 2nd declension adjectives.
- primus, prima, primum - first
- Base: prim- (prima - a)
| Masculine | Feminine | Neuter | ||||
|---|---|---|---|---|---|---|
| Singular | Plural | Singular | Plural | Singular | Plural | |
| Nominative | primus | primi | prima | primae | primum | prima |
| Genitive | primi | primorum | primae | primarum | primi | primorum |
| Dative | primo | primis | primae | primis | primo | primis |
| Accusative | primum | primos | primam | primas | primum | prima |
| Ablative | primo | primis | prima | primis | primo | primis |
| Vocative | prime | primi | prima | primae | primum | prima |