Rudimenta prima grammatices, ex eruditissimis quibusque grammaticis excerpta

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Large decorative drop cap 'P' featuring a profile portrait of a figure in classical attire.
How many are the parts of speech?
Eight. Which are they? Noun, Pronoun, Verb, Participle, Adverb, Preposition, Conjunction, and Interjection.
How many of these are inflected? Four. Which are they? Noun, Pronoun, Verb, and Participle.
How? The verb is declined by moods, tenses, persons, and numbers. The remaining three by cases and numbers.
How many are indeclinable? The other four: Adverb, Preposition, Conjunction, and Interjection.
Why are they called indeclinable? Because they do not vary in their final termination.
Of those that are inflected, how many are principal? Two. Which are they? Noun and Verb.
Why so? Because they alone create a full expression: as "Cicero wrote," "Virgil acted": and without them no part completes an expression.
How many are the articles, or signs of the genders, which the Latins use to distinguish cases, numbers, and genders? Three. Which are they? Hic, hæc, hoc he, she, this (neuter).

DE NOMINE ON THE NOUN.
What is a noun? A part of speech which, when declined by cases, designates something—properly or commonly, corporeal or incorporeal—without any signification of time or specific person.
What do you call corporeal? Whatever is seen or touched: as a stone, air.
What is incorporeal? Whatever is perceived by no sense: as an angel, soul, virtue, knowledge.
Whence is the term "noun" nomen derived? From the Greek word ὄνομα name: or from "I know" nosco, because it notifies a thing.
How many kinds of nouns are there? Two. Substantive and Adjective.