noun
family constitution; household precepts
Refers to a set of rules or guiding principles established for a family, often in a traditional or historical context. Not an everyday term; encountered in discussions of family governance or historical households.
旧家には家憲が残っていることがある。
Old families sometimes still have a family constitution.
家憲に従って、長男が家を継いだ。
In accordance with the household precepts, the eldest son succeeded the family.