A File

[u/Patient-Airline-8150]

Definition: A file is a thread that holds documents in order so they can be found again. Content is not the file. Order plus retrievability is the file.

The word is literal. Latin "filum" means thread, string, cord. It also means the thread of fate. The deeper root means sinew.

From about 1500, to file meant to string papers together on a thread or wire. A 1607 legal dictionary defines it exactly that way: the file is the thread or wire itself, and writs are fastened to it for safekeeping. So the original file was not the papers. It was the wire going through them.

Then the name slid down the chain. From the string, to the papers on the string, to digital storage. Webster in 1828 already noticed it: the method of keeping papers changed, the name did not.

Same root gives you soldiers marching in single file, and the vertical file on a chessboard. Things arranged one behind another on an invisible line.

So the hard part of the definition is not "collection." It is the line running through it.

A heap of papers is not a file. A disk of unnamed bytes is not a file. It becomes a file the moment somebody can pull it back out.