For example, what is the "s" in "apples" or the "ies" in "ponies" called? I found that "morpheme" is probably close, since that's just the smallest grammatical unit in a language, but that's not really identifying the pluralizing nature of the morpheme itself.
I've suggested "pluralizer" to a friend, but that kinda seems made up and I was wondering if there is an actual grammatical term.
Best Answer
This is usually just called the "plural marker" or the "plural morpheme". In English it's usually "-s" though there are plenty of exceptions, and other languages of course have their own plural markers.