Word that has a plural meaning, and no corresponding singular meaning.
1
It is a Greek plural noun, meaning the books, or the little books.
2
Sears soon discovered the reason for the plural noun.
3
We have spelled it with an apostrophe S. Another thing is the possessive of a plural noun.
4
The ONS style guide for those writing official statistics says: The word data is a plural noun so write "data are".
5
It is also, and perhaps chiefly, in this case, a pun on the meaning of the plural noun "cenci," "rags," or "old rags."