s the
primary idea suggests a secondary one of appeal, or address; which in
our language is either marked by its situation in the sentence, or by
the preposition O preceding it. Whence this interjection O conveys the
idea of appeal joined to the subsequent noun, and is therefore
properly another noun, or name of an idea, preceding the principal one
like other prepositions.

The ablative case in the Latin language, as Domino, suggests a
secondary idea of something being deducted from or by the primary one.
Which is perhaps more distinctly expressed by one of those
prepositions in our language; which, as it suggests somewhat
concerning the adjoined noun, is properly another noun, or name of an
idea, preceding the principal one.

When to these variations of the termination of nouns in the singular
number are added those equally numerous of the plural, and the great
variety of these terminations correspondent to the three genders, it
is evident that the prepositions of our own and other modern languages
instead of the changes of termination add to the simplicity of these
languages, and to the facility of acquiring them.

Hence in the Latin language, besides the original or primary idea
suggested by each noun substantive, or name of an entire thing, there
attends an additional idea of number, another of gender, and another
suggested by each change of termination, which constitutes the cases;
so that in this language four ideas are suggested at the same time by
one word; as the primary idea, its gender, number, and case; the
latter of which has also four or five varieties. These nouns
therefore may properly be termed the abbreviation of sentences; as the
conjunctions and prepositions are termed by Mr. Tooke the abbreviation
of words; and if the latter are called the wings affixed to the feet
of Hermes, the former may be called the wings affixed to his cap.

III. _Adjectives, Articles, Participles, Adverbs._

1. The third class of words consists of those, which in their simplest
form suggest two ideas; one of them is an abstracted idea of the
quality of an object, but not of the object itself; and the other is
an abstracted idea of its appertaining to some other noun called a
substantive, or a name of an entire thing.

These words are termed ADJECTIVES, are undeclined in our language in
respect to cases, number, or gender; but by three changes of
termination they suggest the secondary ideas of greater, greatest, and