Donatio inofficiosa
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
An inofficious (undutiful) gift; a gift of so great a part of the donor's property that the birthright portion of his heirs is diminished. Mackeld. Rom. Law, § 469.
Defined under Donatio in Black's Law Dictionary.