Scanlon's Latin Grammar - Essan.org

12 LATIN GRAMMAR
Most masculine and feminine nouns belonging to this declension
are declined like homo.
All neuter nouns and adjectives, no matter what declension they
may belong to, always have their nominative and accusative alike and
always end in ..a in the nominative and accusative plural.
7. Declension of adjectives. All adjectives fall into two main groups,
the first group belonging to the -us, ..a, ..urn type (bonus, bona,
bonum); these are declined according to the first and second declensions.
The second group, declined according to the third declension,
contains three classes of adjectives:
those that have three forms in the nominative singular, one for each
gender:
masc., acer fern., acris neuter, acre
those that have two forms in the nominative singular, one for the
masculine and feminine, and one for the neuter:
masc. and fern., omnis
neuter, omne
and those that have one form in the nominative singular for all three
genders:
masc., fern., and neuter, clemens
Almost all third declension adjectives (as well as some nouns) end
in ..i in the ablative singular, have -ium in the genitive plural, either
-is or -es in the accusative plural of the masculine and feminine, and
-ia in the nominative and accusative plural of the neuter.
Examples:
hominum omnium, of all m~n
vrrgines clementes, merciful tlirgins
corpora omnia, all bodi~s
culpas omnes, all faults
cordium clementium, of m~ciful h~arts