Locatio operis
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In the civil law. The contract of hiring work, i. e., labor and services. It is a contract by which one of the parties gives a certain work to be performed by the other, who binds himself to do it for the price agreed between them, which he who gives the work to be done promises to pay to the other for doing it. Poth. Louage, no.
392; Zell v. Dunkls, 156 Pa. 353, 27 Atl. 38.