safekeeping

Short definition from Wiktionary

Noun

1. 1
   the act of keeping something safe; protection from harm, damage, loss, or theft
2. 2
   the storage of assets in a protected area
3. 3
   the responsibility of a guardian
4. 4
   not returning checks; a system wherein banks keep checks (cheques) that people write, rather than returning them to the account holder with their monthly statement.