noun
antiquity; old times; old acquaintance
Literary word for things or people from the distant past. Can refer to ancient times or a long-standing personal connection. Rare in everyday speech.
旧故をたずねて古都を歩く。
I walk through the old capital, seeking traces of antiquity.
彼とは旧故の間柄で、もう三十年の付き合いになる。
He is an old acquaintance; we have known each other for thirty years.