dis (deis)

5. The Locative Singular ends in -i; as, Corinthi, _at Corinth_.

6. The Genitive Plural has -um, instead of -orum,--

a) in words denoting money and measure; as, talentum, _of talents_;
modium, _of pecks_; sestertium, _of sesterces_.

b) in duumvir, triumvir, decemvir; as, duumvirum.

c) sometimes in other words; as, liberum, _of the children_; socium, _of
the allies_.

Exceptions to Gender in the Second Declension.

26. 1. The following nouns in -us are Feminine by exception:--

a) Names of towns, islands, trees--according to the general rule laid
down in Sec. 15, 2; also some names of countries; as Aegyptus, _Egypt_.

b) Five special words,--

alvus, _belly_;
carbasus, _flax_;
colus, _distaff_;
humus, _ground_;
vannus, _winnowing-fan_.

c) A few Greek Feminines; as,--

atomus, _atom_;
diphthongus, _diphthong_.

2. The following nouns in -us are Neuter:--

pelagus, _sea_;
virus, _poison_;
vulgus, _crowd_.

Greek Nouns of the Second Declension.

27. These end in -os, -os, Masculine or Feminine; and -on, Neuter. They are
mainly proper names, and are declined as follows:--

Barbitos, m. Androgeos, m., Ilion, n.,
and f., _Androgeos._ _Troy._
_lyre._
_Nom._ barbitos Androgeos Ilion
_Gen._ barbiti Androgeo, -i Ilii
_Dat._ barbito Androgeo Ilio
_Acc._ barbiton Androgeo, -on Ilion
_Voc._ barbite Androgeos Ilion
_Abl._ barbito Androgeo Ilio

1. Nouns in -os sometimes form the Accusative Singular in -um instead of
-on; as, Delum, _Delos_.

2. The Plural of Greek nouns, when it occurs, is usually regular.

3. For other rare forms of Greek nouns the lexicon may be consulted.

* * * * *

THIRD DECLENSION.

28. Nouns of the Third Declension end in -a, -e, -i, -o, -y, -c, -l, -n,
-r, -s, -t, -x. The Third Declension includes several distinct classes of
Stems,--

I. Pure Consonant-Stems.
II. i-Stems.
III. Consonant-Stems which have partially adapted themselves to the
inflection of i-Stems.
IV. A very few stems ending in a long vowel or a diphthong.
V. Irregular Nouns.

I. Consonant-Stems.

29. 1. In these the stem appears in its unaltered form in all the oblique
cases, so that the actual case-endings may be clearly reco