complete power of attorney; full delegation of authority
Legal term for granting someone full authority to act on one's behalf. Used in formal contracts and official documents.
The contract includes a clause for complete power of attorney.
He entered the negotiations with full delegation of authority.
Compound of 全権 (full authority) and 委任 (delegation, entrustment). The exact historical derivation is uncertain, but the term is a standard legal expression in modern Japanese.