noun, noun which may take the genitive case particle 'no'
Legal and historical term for a child born to a married couple, as opposed to a child born out of wedlock (庶子). Used in family law and genealogy contexts.
旧民法では、正出と庶子の相続分に差があった。
Under the old Civil Code, there was a difference in inheritance shares between legitimate and illegitimate children.
彼は正出の長男として家督を継いだ。
As the eldest legitimate son, he succeeded to the headship of the family.