noun
written law; statute law
Legal term referring to law that is formally enacted and written down, as opposed to unwritten law (不文律).
See also: 不文律
成文律は、不文律と対比される概念だ。
Written law is a concept contrasted with unwritten law.
不文律 means unwritten law or unspoken rule, while 成文律 refers to formally written, codified law.
Compound of 成文 (written, codified) and 律 (law, rule). The exact historical derivation is uncertain, but the term is used in modern legal contexts.