Black's Law Dictionary (2nd edition)dictionaries

Redemptio Operis

Lat in Roman law, a contract for the hlrlng or letting of services, or for the performance of a certain work in consideration of the pay* ment of a stipulated price. It is the same contract as "locatio operis" but regarded from the standpoint of tbe one who is to do the work, and who is called "redemptor operis,” while the hirer is called "locator operis." See Mackeld. Rom. Law, § 408

Source: Black's Law Dictionary 2nd Ed (1910)