noun
authority of representation; agency; power of attorney
Legal term referring to the authority granted to an agent or attorney to act on behalf of another person. Used in contexts such as contracts, corporate law, and civil procedure.
弁護士に代理権を与える契約を結んだ。
We signed a contract granting authority of representation to the lawyer.
取締役会は彼に代理権を委任し
The board of directors delegated agency authority to him.
委任状 is a written document (power of attorney) that grants 代理権, the authority itself.
Compound of 代理 (representation, proxy) and 権 (right, authority). The term is a modern legal coinage based on Chinese-character roots.