deposit insurance system
A financial safety net that protects bank depositors' funds up to a certain amount in case of bank failure. In Japan, it is administered by the Deposit Insurance Corporation of Japan (預金保険機構).
The deposit insurance system is a mechanism that protects depositors when a bank fails.
In Japan, the deposit insurance system protects principal up to 10 million yen and its interest.
預金保険機構 is the specific organization (Deposit Insurance Corporation of Japan) that operates the 預金保険制度 (deposit insurance system).
Compound of 預金 (deposit), 保険 (insurance), and 制度 (system). A straightforward modern term with no obscure historical derivation.