fi·​du·​cia | \ fə̇ˈd(y)üsh(ē)ə, fīˈ-\
plural fiduciae\ -​shēˌē \

Definition of fiducia

: a contract used under Roman and civil law (as in the emancipation of children, in connection with testamentary gifts, and in pledges) and constituting essentially a contract of sale to a person usually by mancipation coupled with an agreement that the purchaser should sell the property back upon the fulfillment of certain conditions

called also contractus fiduciae

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History and Etymology for fiducia

Latin, literally, trust, confidence, from fidere to trust

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