^{[ fahy-dee-ahy-kuh–mis–uh m ]}SHOW IPAWORD ORIGIN

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noun, plural fi·de·i·com·mis·sa  [fahy-dee-ahy-kuh–mis–uh] . Civil Law.

a request by a decedent that the heir or legatee to the estate convey a specified part of the estate to another person, or permit another person to enjoy such a part.