_Dat._ veteri veteri ---- ----
_Acc._ veterem vetus ---- plus
_Voc._ vetus vetus ---- ----
_Abl._ vetere vetere ---- plure

PLURAL.
_Nom._ veteres vetera plures plura
_Gen._ veterum veterum plurium plurium
_Dat._ veteribus veteribus pluribus pluribus
_Acc._ veteres vetera plures, -is plura
_Voc._ veteres vetera ---- ----
_Abl._ veteribus veteribus pluribus pluribus

1. It will be observed that vetus is declined as a pure Consonant-Stem;
i.e. Ablative Singular in -e, Genitive Plural in -um, Nominative Plural
Neuter in -a, and Accusative Plural Masculine and Feminine in -es only. In
the same way are declined compos, _controlling_; dives, _rich_; particeps,
_sharing_; pauper, _poor_; princeps, _chief_; sospes, _safe_; superstes,
_surviving_. Yet dives always has Neut. Plu. ditia.

2. Inops, _needy_, and memor, _mindful_, have Ablative Singular inopi,
memori, but Genitive Plural inopum, memorum.

3. Participles in -ans and -ens follow the declension of i-stems. But they
do not have -i the Ablative, except when employed as adjectives; when used
as participles or as substantives, they have -e; as,--

a sapienti viro, _by a wise man_; but
a sapiente, _by a philosopher._
Tarquinio regnante, _under the reign of Tarquin._

4. Plus, in the Singular, is always a noun.

5. In the Ablative Singular, adjectives, when used as substantives,--

a) usually retain the adjective declension; as,--

aequalis, _contemporary_, Abl. aequali.
consularis, _ex-consul_, Abl. consulari

So names of Months; as, Aprili, _April_; Decembri, _December_.

b) But adjectives used as proper names have -e in the Ablative Singular;
as, Celere, Celer; Juvenale, _Juvenal_.

c) Patrials in -as, -atis and -is, -itis, when designating places
regularly have -i; as, in Arpinati, _on the estate at Arpinum_, yet -e,
when used of persons; as, ab Arpinate, _by an Arpinatian_.

6. A very few indeclinable adjectives occur, the chief of which are frugi,
_frugal_; nequam, _worthless_.

7. In poetry, adjectives and participles in -ns sometimes form the Gen.
Plu. in -um instead of -ium; as, venientum, _of those coming_.