亡ぼう祖そ父ふ

noun

deceased grandfather; late grandfather

Formal or respectful term for one's own grandfather who has passed away. Used in written contexts, obituaries, or when speaking politely about family history.

• 亡ぼう祖そ父ふは生せい前ぜん、教きょう師しをしておりました。

  My late grandfather was a teacher during his lifetime.

• この家いえは亡ぼう祖そ父ふが建たてたものです。

  This house was built by my deceased grandfather.