Regelböcker
Regelböcker is a term that can refer to different things depending on the context, but it most commonly relates to a collection of rules or regulations. In some historical or specialized fields, Regelböcker might denote a set of codified laws, guidelines, or instructions. These could pertain to legal systems, administrative procedures, religious doctrines, or even specific professional practices. The precise nature and content of a Regelböcker would be determined by the authority that established it and the domain it governs.
The term itself is of Germanic origin, with "Regel" meaning rule and "Bücher" meaning books. Therefore, "Regelböcker"