noun
In domestic legal contexts, refers to judge-made law based on precedent, as opposed to statutory law.
英米法では慣習法が重要な役割を果たす。
Common law plays an important role in Anglo-American legal systems.
noun
customary international law
In international law, refers to rules that have become binding through consistent state practice and opinio juris.
国際慣習法は、国家の一般的慣行から生じる。
Customary international law arises from the general practice of states.
Case law; law established by judicial decisions, closely related to common law but often used in a broader sense.
Compound of 慣習 (custom, practice) and 法 (law). The term is a direct translation of Western legal concepts, likely coined during the Meiji period.