papercache
nounUK /ˈpeɪpəkaʃ/
US /ˈpeɪpərkæʃ/
A papercache is a secret stash of paper that someone keeps hidden away.
She kept a papercache of old letters under her bed.
OTHER MEANINGS
2. A hidden supply of paper documents kept for later use.
The office had a papercache of contracts in the basement.
3. A small collection of paper scraps saved for crafts.
The kids dug into their papercache to make collages.
4. A digital folder where paper-like files are stored secretly.
He backed up the scans into a papercache on his drive.