It is an original word from Latin, formed by "nec" which means "negation" and "unus" which means "one". The word none can be used as an indefinite adjective or as an indefinite pronoun; as an adjective it means not a single one of the people or things represented by the noun it accompanies; and it is important to note that these adjectives are not used in the plural. Here the masculine gender suffers deletion or apocope when it is found before the noun, that is, "no" and "none" are indefinite adjectives that mean neither one and precede the noun. For example: “no harm was done” or “no harm was done”.
Now as an indefinite pronoun, its use is very similar to the one previously exposed, since it refers to not a single person, individual or thing signified by the noun it represents and this pronoun none, it works to reinforce the negation, for example “I read all your books and I didn't like any of them. "
Indefinite pronouns are a genus of words with the value of an adjective, pronoun or adverb that give the noun different values. These can express a quantity, a diversity, an equality, a quality, a distribution, etc. among the indefinite pronouns are something, someone, some or some, anyone, nothing, no one, none or none, other, one, among many others.
And finally we have the indefinite adjectives that are those that describe that the quantity of a noun is imprecise, ambiguous or approximate, among these adjectives we can name the following: one, one, one, some, any, none, few, many, few, too many, enough, others, so many, all, several, each, both, others, true, such.
