noun
Archaic noun for breaking a contract, promise, or agreement. In modern Japanese, 違反 (いはん) is the standard word for 'violation', while this reading いへん is historical.
古文書には「契約の違変」という表現が見られる。
In old documents, the expression '違変 of a contract' can be seen.
Modern standard word for 'violation' or 'infringement', used in legal and everyday contexts. 違反 (いへん) is its archaic predecessor.
Historical reading of 違反, now superseded by いはん. The exact derivation of the へん reading is uncertain; it may reflect an older phonological form.