nudum pactum (n[y]oo-d<<schwa>>m pak-t<<schwa>>m). [Latin “bare agreement”]

1.Roman law.An informal agreement that is not legally enforceable, because it does not fall within

the specific classes of agreements that can support a legal action. • But a pactum could create an exception to or modification of an existing obligation. 2. An agreement that is unenforceable as a contract because it is not “clothed” with consideration. — Also termed naked contract; nude contract; nude pact. [Cases: Contracts 47, 54(1).C.J.S. Contracts §§ 83–84, 87.]

[Blacks Law 8th]