Lewis & Short

ēmancĭpātĭo (emancup-), ōnis, f. [emancipo].
Jurid. t. t.

  1. I. In the strict sense of the term, the releasing of a son (by means of a thrice-repeated mancipatio and manumissio) from the patria potestas, so as to render him independent, emancipation (v. emancipo), Gai. Inst. 1, 132; Ulp. Fragm. 10, 1; Just. Inst. 1, 12, § 6; Quint. 11, 1, 65.
  2. II. Transf. in gen.
      1. 1. The formal surrender of any thing, the delivery of authority over a thing: fundorum, conveyance, Plin. Ep. 10, 3, 3.
      2. 2. Familiae, a fictitious alienation of property in making a will per aes et libram, Gell. 15, 27, 3.