Let's break this down:
* Ablative Case: This is a grammatical case used in some languages, including Latin, Greek, and Sanskrit. The ablative case typically expresses ideas of:
* Means or Instrument: "I wrote with *a pen*." ("pen" is in the ablative case)
* Time: "I arrived *in the morning*." ("morning" is in the ablative case)
* Place: "He is standing *on the hill*." ("hill" is in the ablative case)
* Separation: "The dog ran *away from the house*." ("house" is in the ablative case)
* Noun: A word that refers to a person, place, or thing.
So, an ablative noun is simply a noun that is used to express one of these ablative case functions.
Example:
In Latin, "libro" means "book". The ablative case of "libro" is "libro". If we want to say "I read *a book*," the phrase would be "legi *libro*". In this sentence, "libro" is an ablative noun because it is in the ablative case and functions as the means by which the speaker read.
Important Note: The ablative case, and thus ablative nouns, are not found in English. English uses prepositions (like "with," "in," "at," "from") to express the same ideas as the ablative case.