noun
legitimate family succession; direct lineage
Formal or literary term referring to the unbroken, legitimate line of descent within a family, especially in contexts of inheritance or succession.
この家は嫡々と続いてきた名門だ。
This family is a prestigious house that has continued through legitimate succession.
嫡々の血筋を重んじる伝統がある。
There is a tradition of valuing the direct family lineage.
正嫡 refers to the legitimate heir or the main line of descent, often used in historical contexts; 嫡々 focuses on the continuous line itself.
Reduplication of 嫡 (ちゃく, 'legitimate heir') for emphasis, indicating an unbroken line of legitimate descent. The exact historical derivation is uncertain, but the form is used in formal or literary Japanese.