Origin: Latin suffix -ary
Fiduciary has 4 different meanings across 2 categories:
a person who holds assets in trust for a beneficiary
"it is illegal for a fiduciary to misappropriate money for personal gain"
One who holds a thing in trust for another; a trustee.
"As the new fiduciary, I am legally obligated to manage your investment portfolio solely for your benefit and cannot use any of those funds for my own gain."
Relating to an entity that owes to another good faith, accountability and trust, often in the context of trusts and trustees.
"As a financial advisor, I have a fiduciary duty to act solely in my client's best interest when managing their retirement funds."