The literal meaning of the maxim is "Agreements must be kept".
The literal meaning of the maxim is "Agreements must be kept". It is the principle used in the International Law, which means "all the signatories should uphold international treaties". The rule is based upon the principle of "Good Faith". The Good faith indicates that a party cannot invoke the provisions of the domestic law as justification for a failure to perform. The only limit to the maxim is peremptory norms of general international law known as “jus cogens” which denotes the meaning “Compelling law”.
"A" and "B" are the two nations signing treaties which lack the principle "pacta sund servanda". It will be ultimately unbinding, and it cannot be enforceable. Since treaties are should be executed with Good Faith. Therefore, the treaty will be void.
· Eureko B.V V. Poland (2005)
· CMS Gas Transmission Company V. Republic of Argentina (2005)
A thing adjudged
The legal maxim is of latin origin meaning a matter or thing that has already been judicially decided on the basis of its merits and the same matter cannot be litigated between the two parties again. The maxim is of the belief that for one particular claim between litigants, one judicial contest is enough and reexamination of the same matter is not in the interest of the society. With the rapidly increasing pressure on the judiciary with rising judicial work, attending to a particular matter to one single contest is a reasonable restriction adopted.
“An allegation contrary to a deed is not admissible.”
It means if a man has entered into a deed with certain concrete facts, he shall not be permitted to deny any matter which he has so verified.
A delegate cannot further delegate.
This Latin maxim means that a person to whom a power is delegated cannot further delegate that power. That person cannot sub-delegate that power to someone else. No sub-delegation can be done in a contract of principle-agent without the knowledge and consent of the principle. This principle is often used in administrative or constitutional law.