元げん姓せい

noun

former surname; original surname

Refers to a surname someone had before a change, such as after marriage, adoption, or a legal name change. Often used in official or genealogical contexts.

• 彼かの女じょの元げん姓せいは田た中なかですが、結けっ婚こんして鈴すず木きになりました。

  Her former surname was Tanaka, but she became Suzuki after marriage.

• 戸こ籍せきには元げん姓せいも記き載さいされている。

  The family register also records the original surname.