What does ADEMPTIO mean? May 22, 2017 All Dictionary ADEMPTIO meaning in Law Dictionary Lat when you look at the civil law. A revocation of a legacy; an ademption. Inst. 2, 21, pr. Where it absolutely was expressly moved from 1 person to another, it was called translatio. Id. 2. 21, 1; Dig. 34, 4.