noun
secret will; sealed envelope will
A will whose contents are kept secret from witnesses; the testator seals the document and submits it to a notary. Used in Japanese inheritance law.
秘密証書遺言は、公証人の面前で封をして提出します。
A secret will is sealed and submitted in the presence of a notary.
Compound of 秘密 (secret), 証書 (certificate/document), and 遺言 (will). The term is a direct legal designation.