正せい本ほん

noun

original; authenticated copy

Refers to the original document or an officially authenticated copy, often used in legal, archival, or formal contexts.

• 契けい約やく書しょの正せい本ほんは金きん庫こに保ほ管かんされています。

  The original of the contract is kept in the safe.

• この写うつしは正せい本ほんと相そう違いありません。

  This copy is identical to the original.